Well, some people here are starting to suggest that we shouldn't take Oda's inconsistency so seriously, since all of it is just plot. So Big Mom being beaten is not a big deal anymore.
Thats not what anyone is saying.
We are asking why people are caring
now
This is the same mangaka that:
- Had everyone survive all of Enels attacks
- Had Pound survive. Had Pell survive. Had Pagaya survive
- Had Robin wake up offscreen for no reason or explanation after losing her shadow
- Had Luffy and Zoro gain unexpicable powerups and strength in a timespan that does NOT make sense at all in Water 7
- Had claimed Magma is stronger/hotter/consumes than Fire. Irl it does not, PLOT
- Had prevented anyone from cutting Birdcage for 60 chapters, not even an Admiral
And countless other things that drive the PLOT forward.
Wano is literally no different from any other arc in this manga, battles and all