I'll bite. I shoot a lot of PRS-type matches, both here and down in the States, and quite enjoy them. Is the current state of PRS/NRL "practical"? Not really but to be successful you do need to be very proficient with a rifle and be able to quickly build a stable shooting position on random props/obstacles and those skills translate to any kind of field rifle use.
To understand why matches are what they are now, you need to look at how matches evolved into their current form. The original matches were "field matches" shot in, you guessed it "field conditions" and guys generally had a "sniper type" rifle. The problem was that you can't hold a true field match in all that many locations so the current iteration of PRS/NRL matches grew from people running matches on more traditional ranges but trying to simulate the obstacles you'd shoot off with props. Being that you could more easily run matches like that in many more areas, the sport grew and guys and gear got better. As hit percentages went up, the options were to limit gear, increase distances, decrease times and/or make more awkward props. Pretty much all of that has happened except the gear limitations. 90s stages with multiple positions shooting at multiple targets at different ranges are routine. The level of skill and the improved gear makes that possible. Most guys are opposed to the idea of creating arbitrary rules to limit gear because no one can decide on what the limit should be. Considering that you don't have to move real far from stage to stage (although some of the matches out here in the West you still end up moving a mile or 2 over the course of the day), weight isn't exactly a huge concern and most guys can easily carry a 20+lbs rifle and gear all day (never mind that a "sniper rifle" isn't far off that weight, an M40A6 weighs about 18lbs, add a clip-on NV scope and an IR illuminator/laser and you're over 20lbs easy).
Although not as common as PRS/NRL, there are plenty of matches out there that weigh other requirements than just the "pure" shooting aspect of PRS/NRL. There are team and solo matches that require you to hump your gear all day and identify, range and engage targets on the clock in field conditions. The Rifleman's Team Challenge matches, Competition Dynamics matches, Bushnell Sniper matches, Mammoth Sniper Challenge, Sniper Adventure Challenge are all examples of these "more realistic" matches. These matches all have their own intricacies but they generally involve moving over greater distances, doing target id and ranging on the clock. Some of these matches (Competition Dynamics) use total time as part of the score and some have time "hacks" that you have to make for the rucks. Obviously these kind of matches require you to prioritize your gear differently. I've shot numerous RTC matches and since the movements aren't timed, I still carry a heavy PRS-typical rifle. Before Covid kicked off, I was scheduled to shoot the Burris Optics Team Challenge, a match run by Competition Dynamics where each day you shoot a match on a course that is about 1.5 miles long. There are 6+ firing position, each with multiple targets for the team to find, range and engage. The whole thing is timed. Obviously, the rifle I was planning on bringing was going to be a compromise in that it would be lighter but not so light as to handicap me when shooting, as the bolt gunner only gets 1 round per target. A 2-day match like Mammoth, where you carry all your gear (including food, sleep system, etc) for the 2 days would require you to similarly cut the weight you carry and weigh what compromises work best for you. Tangentially, there are also matches that have either (or both) weight and minimal "power factor" requirements, such as the NF ELR match Scott Satterlee runs in Wyoming (sub 16lbs rifle all in hunter class or open class) and his Hornady Precision Hunter match (sub 16 or sub 12lbs rifle classes all with a minimum power factor that works out to a 140gr 6.5 bullet going 2750fps). Finally, if you're mil or Leo, there are sniper matches that aren't open to civis that include elements of field craft as well (USASOC, etc).
What I can tell you though, as someone who is relatively plugged into the world of competitive precision rifle matches, the guys who win matches do so across the spectrum of match types, be it PRS/NRL, RTC, Competition Dynamics, Military matches (USASOC) etc which in my mind, is proof that the skills all cross over. The shooter just has to adapt himself to the particular set of rules that govern the particular "game" he is playing that day.
As an aside, competitive precision rifle shooting has helped improve the gear that military and police snipers field. Things that "old school" shooters pooh-pooh like tripods, game changer bags, pump pillows, etc are all used by "professional" shooters these days. Tripods are part of the curriculum for military snipers, Leo snipers often deploy with Gamechangers and pump pillows and the list goes on.
