We are already seeing that issue with people using the current bg3 mechanics now. Because they don't understand percentages and there is confirmation bias rampant. Unless it is 100% you have a chance to miss. Even if your chance is 99% you can conceivably miss 10 times in a row. Chances are low but it can happen. More rolls do not increase your chances, each time is the same (gamblers fallacy).
If they can't understand the current mechanics, then going to 5e would be even harder for them (which they are basically the same with the inclusion of advantage/disadvantage on elevation). Even then, I don't think a lot of the people complaining that they can't hit anything understand advantage in the first place.
This is the reason why e.g. Dota 2 does use pseudo-random distribution. People just can't naturally deal with statistics and probability. It's somehow too aliens for our brains. When we see 30% we expect it's about to happen on every third occasion. That's what pseudo-random distribution does achive while still keeping some degree of randomness.
