Which was a conscious decision to not errata the books every few month.
The ranger and monk were good enough in actual play. Especially after Tasha upgrades.
Meeeeeeh. The Monk has been alright, it's biggest constraint was locking so many good things behind ki, which it never had enough of. My way around that was just adding one's proficiency bonus to their ki pool. I will say the Fizban model for monks was interesting, though I really think each monk class (and classes/subclasses in general) should have gimmicks that don't require resources so that you always have them.
Rangers, though... the Ranger as a model was just never good and while it may have made it
playable, that is an incredibly low design bar to hold. Remember that they got enough feedback that, early on, they were looking to fix an entire class because it was just utterly
bad. Even with Tasha's fixes (which come 6 years into the game), still not great.
So when someone say, Wotc make an unbalanced game, I only see those few examples over and ove again. Which in the grand scheme is not a lot.
So the game overall is quite well balanced... I am still imoressed that noone in 10 years in my groups has complained about having a weak character and I as a DM have never felt that my monsters are not working good enough.
So I don't understand what your point is. Or better your point is indeed a very little point in a wide plane.
Your experience is different than mine. I've seen, in particular, the power of casters exceed that of martials pretty consistently, and especially when it comes to certain powerful abilities. I've actively moved people away from certain subclasses (Elemental Monk, Berzerker Barbarian) or even classes (Fighter, Ranger).
Now what gives me a lot of positivity is that I think they have at least done better on a lot of those in the playtest. The Berzerker
especially is just a way better, way more interesting version of the first one. They haven't done as well with everything (the Fighter is still very uninspiring), but let's not forget that they are likely doing this because the game is in desperate need of some of the fixes that they have avoided giving for many years. The game is unbalanced, but it still
playable and can certainly still be fun as well. But this game isn't particularly well-tuned, and I feel like that is part of the point sometimes.