Those sound statements for the high tiers?
And you just ain’t been here for long, plenty of people have brought up MHA’s inconsistencies. I don’t know much but if those sound statements are for crucial points or abilities in the verse then they should be downgraded properly.
AND yes plenty of big verses have gone through major downgrades, Naruto used to have ftl and high 6a for base god tiers, they used to be ISLAND level, Bleach has been in a pit of hell with its speed scaling and constantly getting changed and reduced. OP is literally locked, Black Clover used to have a bunch of earlier arcs LS and mftl and now its limited to rel and LS and eos mftl. I don’t even know much about Marvel but I know 1-A has been downgraded criticised and redone, I believe there’s been like three crts on their tier 5 scaling because it was scaled off like one grey hulk calc.
You just haven’t seen the endless downgrades, caps, arguments and upgrades that the verses have gone through.
JJK is just in its now, we used to have 7-A scaling three years ago, went down to 7-C, 8-A, now we’re kinda in the H7C zone, despite what anyone thinks who disagrees with the speed crt, the verse has been consistently sub-hypersonic on page and in calcs for 5yrs (except Toji being sub rel one time).