We are now at 86,1% :-)
Even if we hit 100% right now, at this point this doesn't say much at all. It could take a good 3 months before the hard fork finally takes place, so it will require a good level of patience from everyone.
I wouldn't call that patience. It's a pretty hasty attempt at implementation if you ask me.
It could all fall apart yet. SegWit supporting miners could decide not to support the hard fork later, which would cause absolute heaps of arguments and more drama regardless of whether or not it's necessary.
It's nothing more than a tiny step forward, and that's really it. That explains why the market hasn't really bumped much even though this can be seen as very important news.
I'd say it's because 90% of new Bitcoin buyers are brainless speculators and technical analysts who don't give the slightest shit about how promising something could look. That said, there might be a hype spiral starting before SegWit activation.