Yeah we can't not in this version of WoW atleast, it just wouldn't make sense and feel ultimately even less impactful for our characters just to become adventures again...we are Superman now, we can't go back to being just Clark Kent.
Its a double edge sword where both kinda fucking suck.
To me I think they need to focus on making a really good badass threat to us and what we have fought for (...Azeroth) and not just toss the threat to the wayside after one expansion, the real problem is our enemies. The big bads or the lack their of its not about us being or not being an adventure its about what we go up against not stacking up to expectations its comes to a point where its just like "oh another one...o another..and another" and not even the biggest spectacle can save these threats that don't feel like a threat. I think its time for our PC to lose. To come close and fail..that can set us back, that can change the perspective.