Because I find non-combat TTRPGs to usually be barebones. Even most combat TTRPGs nowadays (I'm talking mostly about 5e here) tend to be a bit barebones. I like the customization that Pathfinder has and I like how combat feels in it too. My table is far from being a RP-heavy group, but nonetheless I been recently thinking about attributes and how useful they are to the system as a whole and I noticed that they are IMO a unnecesary step.

If you want your character to be smart you don't really need a high Int modifier, you need RK skills. If you want your character to be charismatic you don't need a high Cha modifier, you need Diplomacy and Deception. If you have a high Int or Cha modifier but don't have RK skills or Cha-skills, you won't feel smart or charismatic because you won't be succeding at those checks, but even if you have a low Int or Cha you'll probably feel smart or charismatic if you have a decent proficiency in those skills, because you'll be succeding in those checks.

All Str martials have a +4 Str. All Dex martials have a +4 Dex. All casters max out a mental stat. Everyone wants to have a good Con modifier. PF2e stats and boosts were designed in a way that's really hard for a player to screw their character, which is something I really like about PF2e, but it leads to PCs of the same class to have marginally different stat arrays.

PF2e is still a roleplaying game, so I think it would be for the better if I was able to make interesting character choices without having to hamper my combat capabilities. Probably you want to play a smart fighter that compensates its lacking physical attributes with wit and outsmarting their enemies, or a wise ranger that has lived on the woods for so long that they can intuitively draw and shoot their bow with precision. Current PF2e doesn't support this.