He ain't wrong though, you want more complex dps rotaion, play a dps then.
Thing they should do instead is remove all tank self healing, which is never gonna happen because tanks will all throw a hissyfit over this, but they made a huge mistake giving them way to much self healing, so that the player that actually has to heal .... only has to do so when there's raidwide aoe's, when the one person who is taking the most damage and should be healed by you never needs it, never understood that design logic honestly.
Or make it so that their self healing is reduced by 90% when inside a dungeon/raid zone, so they can still have it everywhere else; I dunno, but it needs to go if you want healers to be mor engaging to play.
More dps is the wrong solution because that's not the point of rolling healer, those buttons should just be there to have something to do while no healing is needed to throw in once and a while, so in order to fix it is for there to require more healing done, which is never gonna happen this expansion anyway because the devs are to afraid to do anything like that mid expansion.