Yeah, SCH dps wasn't hard, but it was harder, and more interesting, than it is now. If they wanted to make it better than it was before, I'd have no complaints. And to be clear, when I say I would like things to be harder, I mean I'd like a higher skill ceiling.
Another genuine question: why is it so important that the holy trinity be pure? I know there are a lot of people who think it is, so I'd like to understand why.
The way I see it, there is only so much you can improve your healing: when no one is dying, you just can't do that job any better. I advocate for dps complexity because it means that there's always some way to do your job better (when you've got the healing down, and only then, you can work on optimising dps). I'd be equally happy with some sort of offensive buffing system, so long as it was decently complex and had short enough cooldowns that you could focus on maintaining it whenever there was no healing required. I'd be happy with them increasing the amount of damage incoming, so we had less reason to use our dps kits, but I think we still need to account for the fact that someone could master that harder content, and they should have something to continue to work towards at that point. Ergo the dps (or buffing system) should be there, even if most players will never use it (in group content, anyway. I imagine most would use dps in quests and whatnot).
If you have the time, I'd very much appreciate it if you told me why you think maintaining the purity of the trinity is important, how you think it stacks up against concerns like mine, and whether you can think of any solutions that would resolve my concerns while maintaining what you think is important.
Note: being able to optimise dps doesn't mean the dps has to be very powerful. Just complex enough that it's something you can improve at, and have at least a marginal benefit to your group.