I dont think he is advocating for making all jobs a 1 button wonder. Dragoons have a couple "combos" that can get hectic when trying to keep buffs and debuffs up as well as making sure you are following mechanics of the fight. I know my fingers sometimes jump the gun and will hit the 2nd part of a combo, rendering far less damage and having the whole rotation get fubared. Its more about making those parts of a rotation easier to do. I main a bard so this is not an issue, but when I play my dragoon I struggle with this.