Well, if you ask very little of your guns, almost anything will work. Most handguns would run fine for a while - maybe 300-500 rounds, more in the case of a Glock - if you took a cheap birthday candle and rubbed it on every surface a bit...you'd get a petroleum-based wax that burned off once it got hot (basically Froglube, but with stearic acid instead of an olefin base, and a slightly different balance of ingredients. Petroleum, and stabilizers. Come to think of it, that might actually be a better lube).
It's no challenge at all to run a gun lightly with lousy lube. So the question is: what happens when you push a gun with Froglube?
And, unsurprisingly, here's what you get:
breakdown of lubricity
failure to remain wet as the olefin begins to burn off
lack of solvency - i.e. the carbon residue accrues instead of getting floated out of the way
That's why, if you run a suppressed AR on froglube, you end up with a gummy brick. Or if you let it sit around in a hot, dusty environment. Or, come to think of it, if you shoot it in a hot, dusty environment. Go look up any hard usage test on the stuff...it doesn't hold up under hard conditions. Now, will that affect YOU? Maybe not. I'm not here to worry about anyone else's shooting schedule. I'm describing the properties of the lubricant itself.
So if you don't need a good lube - and many of you don't - feel free to use it. Or used motor oil out of your car. Or, literally, rub a birthday candle on the inside of the gun. If you clean it a lot and you don't shoot it hard enough to make it hot and you won't put 5000 rounds through it over your entire life, pretty much anything will work. Will it wear faster? Absolutely. But if you're only going to use it for a tenth or a twentieth of its life cycle, it almost certainly doesn't matter.
Just don't confuse yourself with someone who understands the technical requirements of guns re: lubrication.
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