>>55741379>Assuming the system is badly designed doesn't invalidate the strength of the d20 as a dice.The system is badly designed if it's using 1d20, full stop. You can try to mitigate the disasterous effects the d20 has on your character's ability to perform, like FantasyCraft does with a minimum skill result of 20+CL and Action Dice and very low DCs, but that's compensating for a shitty RNG.
Calling failures and surprises exceptions is disingenuous as it will happen far more often than it would with any RNG with a non-flat curve to it. It isn't more "interesting" or "fun" to have your character fail at things they should be good at and succeed at things they should be bad at. It's bad design, except when used in comedic games, where the swinginess is a benefit because it will lead to hilarious situations, but it has no staying power outside of that because of how destructive it is to characters and stories.