I really hate whenever I try to explain how some bad rules can be abused and immediatelly get someone say shit like "If this happens in your group, change it" as if that would solve the problem. And whenever it is not soemthing you witnessed personally, then it means it never happens and could never happen.
This is a bad take. It would work if D&D 5e were the only rules in existence, but it isn't even the only version of D&D in the conversation, pretty alone the wife breadth of other systems out there. I've been singing Pathfinder 2e's praises for nearly 2 years now, and if the problem with PF is that it's too crunchy, there are numerous other much lighter systems out there like Dungeon World or 13th Age.
By all means, use 5e if it works for you, but that shouldn't stop criticism of it in places where the rules can be exploited, especially if other systems lack those exploits.