It seems like the youtubers are picking up on this before the majority of the community
That the "Int Sion Tactic" has very little to actually do with sion...
Yes, sion is probably one of the best champions for it given his passive and ult allowing him to maximize his chances to proc demolition and his ult allowing him to clear the lane while running back faster.
However, the strategy of just constantly split pushing and ignoring your KDR in favor of pushing at all costs. Its a strategy that can be applied to ALL juggernauts, due to their design and the current iteration of the Tank > Assassin > Marksmen cycle. Currently juggernauts are at a massive itemization advantage over the other classes, due to them falling between Assassins and Tanks. Having a lot of durability, a moderate amount of CC, but having their AD damage heavily tied to their CDs.
Seriously, I watched like 2 "Int Sion" clickbait videos on YT, and now i'm seeing that creators are making thumbnails like "Int Trundle better than sion?!?!" or "Inting Yorick better than Sion!"... Seriously, this isn't a problem with Sion, this is just that the game has been in a juggernaut meta and people haven't been paying attention... or maybe people just don't actually understand the game that they're playing as well as they'd like to believe.
And historically this has just resulted in compensation buffs to the classes that counter the juggernauts (like marksmen), rather than the rare cases of them actually nerfing the causes of the current class being strong. So i hope the boards is ready for those damage buffs you've been asking for...
... or something like that
(which is massively undervalued in their gold costs), you have a problem with undervaluing offense in the "power budget" of mechanics, rather than failing to provide enough defense.
These guys are doing average at best right now and notice that none of them typically include cleaver in their builds.