I would still like to see Hillary do better amongst minorities. Obama took 'em at 80%, right? But there are more of them... if Hillary can get to like 74 or 75, that pretty much makes victory assured even if Trump turns it around or has people coming down from the trees for the first time.
I just did the algebra on the 2012 exit polls, and by my calculations, Obama wins non-whites 82%-18%, if you're only talking about the 2-party vote (so excluding 3rd party/other here). In this poll, Clinton leads the 2-party vote on minorities 78%-22% in both the 2-way and 4-way question. While the poll has Johnson and Stein doing well with minorities, they're not pulling a disproportionate share of those minorities away from Clinton. It's just that Clinton has more minority support to begin with, so she has more to lose.