If I were to play any of the dps classes/jobs I'd probably be one of the "bad players". I just have no interest whatsoever in learning whatever finger gymnastics are required to put out acceptable dps. It's one of the primary reasons I stick to healing. I don't want the stress of micromanaging combos, rotations, x buff that allows me to use y skill, juggling an mp bar, etc. I have enough self-awareness to know when I can dps between heals and when I can't, I know how to not stand in bad, and I'm fairly good at picking up on new mechanics once I've seen them once or twice. That's the extent of my "skill".
Don't get me wrong, I can handle a tank who goes balls to the wall nuts with pulls in dungeons. I can perform adequately or even above average on most of the extreme primals, but at the end of the day I am not looking to "get better" or to "learn to play". What I'm looking for is a relaxing enjoyable gaming experience that isn't going to stress me out. In the interest of not letting my "badness" affect other players I avoid content I know requires "skill", such as anything Savage. I'm not looking to "work hard" or "git gud". I'm looking to enjoy myself without stress and with relatively simple (as far as I'm concerned) gameplay. The WHM and SCH both fit the bill for me. No stress, no expectations outside of keeping folks alive, not standing in bad, and dpsing when incoming damage is light.