It's a given that most media at most times sucks. But current day is really trying to up the ante:

Even before this adventure begins, Vecna has been embarking on a plan that’s many years in the making”, Hamon explains. “He’s been instructing his cult – which is across all DnD planes and DnD settings – to specifically extract important and powerful secrets.”

Every stolen secret serves Vecna’s “Ritual of Remaking”, which Hamon says will give him enough power to “remake the multiverse to his own will”. But secrets can be used to stop Vecna too, provided they’re shared freely.

So D&D is aping Marvel's multiverse and the infinity stones? How much more derivative can you get.