Actually there is some people who can't even do 1-2-3 correctly, because they are not as good as you think they are, become too stressed in a fight or dont even know that 3 steps combos even exists (this is rare but sometimes you can see some players spamming the same button over and over). I can already see people complaining of the game becoming more and more dumbed down if this become automatized.

Also where do we end this ? Why not a one-raid-opener-button ? If 1-2-3 is really the same as 1-1-1, isn't 1-2-3-5-6-8-9-7-4-12-8-9-16-14-4 the same as 1-1-1-1-1-1-1-1-1-1-1-1-1-1-1 as well ? XD