Suppose they do the PvP thing.

1-2-3 goes to 1-1-1
1-1-1 is just button mashing
You can make a keyboard macro that autofires 1-1-1, no hax or game modification required.
Your rotation is now automated.

That particular "bloat" isn't actually bloat. The combat is all about making your brain juggle a rotation, cooldowns and fight mechanics together.
Less balls to juggle is actually just flat out simplifying the game to be easier.