According to Jeremy Crawford, that's exactly what people wanted. Their survey results said players didn't want to learn a new mechanic unique to a class. He said this in one of the Unearthed Arcana videos on YouTube I don't know how many years ago.
Oh, yes. Absolutely. But, apparently, I'm 100% in the wrong here for saying this. So, I guess you're wrong too.
I have to say that the scales have fallen from my eyes. I mean, one of the big innovations in D&D being touted here is a 30 some year old setting whose fans have strangled any changes at birth. Planescape is certainly a source of amazing innovation and Planescape fans have welcomed changes and new ideas with open arms and early adoption. I am apparently entirely corrected. D&D is a bastion of innovation where the fandom welcomes the new and original with open arms and welcoming smiles.
I mean,
@Alzrius points to a 30 year old source book that was reprinted as an example of amazing innovation in D&D. That's certainly a great example of the level of innovation that we know and love in D&D.
Hey, it's only been what, 20 years since the last time we saw an original setting for D&D outside of a couple of one off books? The one class added in 5e was a recreation of a 20 year old class and now, in a flurry of originality, we're going to get a psion class. We only saw that printed for the first time, what, thirty five years ago? Somewhere in that neighbourhood.
But, sure, D&D is a hotbed of originality, new mechanics and innovative design. I totally see the truth now. Thanks guys for helping me to see.