For the "ability bloat" people I'm a bit curious. Swtor is a tab target mmorpg it's engagement comes from pressing a keybind on a 1.5 gcd (global cool down) this is how you interact with the world. Most animations and move are stale and generic with particle effect on them, essentially what you are asking for is less engagement. Combat won't magically get better from less abilities to press. You now just have less to do while looking at the same stale generic animation only with less variety now. In games like BDO less is good. It's flashy and satisfying and most abilities change on multiple key presses which adds more depth to its combat. Asking for less is a tab target mmo does not improve it's gameplay, IMO.
Maybe it's just me but in a tab target mmorpg I'd rather have 30 keybinds that do unique things then 15 that combine multiple things into one ability. It takes away the strategic choice of the encounters. It reminds me of the one button macros from Rift it was silly you could macro almost an entire rotation into one button in that game. You could macro a stun/snare/execute into one button and take the thought of having to use them strategically. that made pvp a mess and pve was 2-3 button mashing.
Going to end here before thing get awkward but I am genuinely curious why having less abilities in a tab target game is good to some even if the abilities are niche they are there to offer player engagements in unique situations.