I was never saying that good or better equipment wasn't needed or wanted or helpful. I only wanted to state that a 90D is much better than your opinion in your post that I quoted first.
Of course there is a lot of equipment with features that makes a photographers life easier.
Your first post stated that a 90D was far away from beeing in league with a 7DII and this simply isn't true.
It is better in MP and ISO performance.
It is (almost) the same in FPS and AF performance. It is slightly worse in dual card and maybe in built.
But it is also reasonably cheaper.
It is right that there are no dual cards. That's crucial to some and irrelevant to some others. To me dual card is only true if dual the same type, e.g. 1DXII.
It is right that no. of AF points and AF point spread is a little bit worse than with a 7DII.
Maybe 45 AF points are much worde than 65 with wider spread.
But I am sure that a lot prefer a lower price over some slightly better features.
As I said, if you don't like the 90D spec list, skip it. But if you don't like it you don't have to put into the dirt for some points that haven't improved over the 7DII or are slightly worse.
So there also is obviously more to it than you want to acknowledge.