STOP DUMBING DOWN THE GAME.
Having tons of different buttons to push doesn't make you smart or good at the game. Having fewer buttons doesn't make you dumb or worse at the game. A literal comparison of # of abilities to # of abilities is not a valid comparison for depth of play or complexity that a skillful player can use.
If you have 30 buttons and your rotation is to push each button in order from 1->30, is that a smart game? Can you as a skillful and smart player press those buttons from 1->30 better than a worse player? Now what about if you have 5 buttons that require situational awareness, combo off each other, and a skilled player can achieve let's say a ~10% DPS gain over someone else using those same 5 buttons just by making smart decisions of when to press them.
What's your opinion now on what number of abilities means to making combat complex, smart, or skillful? Do fewer skills actually mean a "dumber" game? Does more of something just seem better? Is context of mechanics/gameplay/skill trumped by counting how many of something there is?