Tanking and healing have been scaled down to be considerably easier but the numbers haven't budged much because most people don't like having responsibility beyond being in charge of the pew pew big numbers.

Plus let's be honest, the dps jobs are a lot cooler looking, have much more thought put into their design, and DPS deaths usually don't get other people killed or cause a wipe.

If SE ever wants to deal with the numbers disparity between roles then they definitely need to make tanking/healing more inherently satisfying, because as it stands tanks are barely any different from DPS, and healers are so dumbed down that skilled healers are rare because why the heck would someone with the skills of a CEO find flipping burgers at a McDonald's satisfying as a main job?