Please, if it's that straightforward, can you share proposed house rules for the three that you are responding to?
1. High Level Play
2. Balance casters and non-casters with only 1-3 encounters per day (in each tier of play)
3. Make all races more powerful so that there is more design space for interesting outliers (large centaurs, non-humanoids, permanent flight) with them being balanced against the other races so they don't feel OP.
Again, without having to do major rework, because at that point it's easier just to switch to another system -- which I have.
Or is what you are proposing far too large set of house rules and customization that it would never be worth it over switching to another RPG? I'd love if you were right, please wow me.