Lazz will appeal to those well heeled souls who spend more time spouting printed data then burning powder. Sort of like exotic car owners. Exclusive, amazing potential, great bling factor...
Don't get me wrong, I love Ferraris, Lambos and most cars over $100,000 with no trucks. But when you see most of them for sale several years later with less then 5000miles on the odometer you know that this was a status symbol and nothing else (mine would be used and pleasantly abused as its engineers designed it for). They didn't even cruise enough to pick up chicks. Maybe they couldn't get into the seats

Maybe they got really really scared after stomping on the throttle.
Savage has partnered with Lazz to make both the Warbird and now the Patriot line. Sako did the warbird too. But since they don't anymore, I can only guess that non high end buyers didn't see the point. The rifles were about 1/3 a 'real' Lazz. However, brass and dies are big bucks.
To get even remotely close to Lazz printed data, you need a 28" or longer barrel (I think they even say their data is shot with 28" barrels, easy enough to confirm). Any case with that big a boiler room needs barrel length. The 30-378 is no exception. Yes, they put it in a 26" rifle but they also make 28" boomers.
When I see 'amazing results of 4000fps from a 30cal rifle' then read that they are launching 130gr X bullets, I know they are after the reader, not shooter. However, they do go on a few hunts and shoot bores and sheep at amazing distances like 400yds or so.
Hey, marketing hype put Weatherby on the map. Why not someone else?
We all don't have to be practical and drive mini vans...
Jerry