A certain Discord made your exercise in a much more meaningful way OP by using percentage instead of raw numbers, while I've saw this weeks ago it's probably still accurate:
https://scontent-gru2-2.xx.fbcdn.net...fd&oe=5DDE142E
Disregarding the obvius elitism of calling people "potato", it is a decent figure that shows how a class performs compared to "ideal" performance (in this case 90%) it is also pDPS only since it was before recent update on that certain site that shows rDPS.
Looking at this we can clearly see that uptime is the biggest villain, MCH has high APM and a complex rotation, but is still the top job in terms of accesibility, RDM is bottom, but I'd guess it has way more to do with class fantasy and thus players using "defensive" skills more than they should, the casters are all in the bottom, meaning casting is still considered "hard" by the majority of the community, even harder than melee. SAM being so low is a mistery to me tho.