Originally Posted by
Stickiler
We went on an adventure to another plane, where we joined forces with, and became empowered by, the forces that existed there to destroy their enemies. That's also a pretty typical fantasy storyline.
The main driving force behind why I've never ever had a problem with the power scale in WoW is that we have basically never fought extra-powerful foes without an external assistance or empowerment of some kind.
Wrath - We required Tirion to shatter Frostmourne and Terenas to bring us back to life to win
Cata - We required the assistance of the dragon aspects and the Dragon Soul to even have a chance against Deathwing
MoP, WoD - The villains were pretty grounded
Legion - We teamed up with the mfking Titan Pantheon to defeat the final boss, and had extremely powerful artifact weapons assisting us
BFA - We required the HoA, assistance of Azeroth and a Black Dragon to defeat N'Zoth
SL - We were empowered by the Leaders of the Covenants, and Azeroth again assisted in defeating the end boss.
Without all the empowerments that we've sought out in each expansion, we ARE just "normal" champions, more powerful than most people on Azeroth, for sure, but not "lmao I solo'd the power of death".
All this told, I see zero logical inconsistency for us to come back to Azeroth and go on a normal adventure again.