I wouldn’t be opposed to this but I’m not sure if scaling it more is the right answer. The damage dealt to DPS and healers(Can’t speak on tanks since I don’t play them) currently is very spiky, not even looking at white attacks.
The triple bosses in Nightfall Sanctum would be a legit nightmare if they hit harder anymore than they do now. Maybe adding newer bosses past T11 and more mechanics would seem ideal. I could see Blizzard changing their philosophy to add more tiers after seeing this:
It’s taking delves players into consideration over the other pillars for S2, so that gives me hope that more tiers could be down the pipeline.