One of 3rd edition's problems that grew apparent as it and the 3.5 edition chugged along was that while the game doesn't exist for optimization, the power levels of classes do affect you.
It is mostly a question of scale and gap. 3.5 grew to be hated when a druid's pet was more effective than a literal Fighter character.
Do I think 5.5 is at that point? No. Do I think 5.5 is more genuinely unbalanced between options than 5e is? Yes.
All this talk of dual-wielding and sword-and-board paladins ignores that no one even brings up a paladin in 5.5 using polearm mastery ever. It's so obviously throwing it is not even mentioned, when the feat was quite powerful for the class in normal 5e.
So in a thread about bad, counter-working design in classes, Paladins got their knees shot out and I wanted to point it out. That is a bad thing, and why I call it pseudo-ivory tower. If two players pick random characters, you should not be completely overshadowed by your mate who also just chose what sounded cool. Makes the game unfun to play at the table, where it actually matters.
I didn't think that was a controversial opinion