BU has been dwindling since the ASICBoost scandal broke. It is now under 30% at
https://coin.dance/blocks.
The Politics link at coin.dance shows only 4% of organizations actually oppose Segwit. Not surprisingly it looks like mostly miners in the BU cartel.
Segwit will probably never reach the 95% threshold, but the UASF certainly looks to be gaining steam. My guess is that is how it will end up being implemented.
http://www.nodecounter.com/Bitcoin Unlimited blocks: 348 ( 34.8% )
SegWit blocks: 288 ( 28.8% )
SegWit got even less than before.
Base on your logic, people must have realized any nameless mining farm could have been using ASICBoost for months/years, and pinning it on AntPool with no evidence is just idiotic. And SegWit is still a poisonous piece of crap.