I feel like he figured Ngoepe had no chance against Betances while the latter was clearly rattled from being run on. It was a ballsy decision but considering the context it's not the worst decision to be made.
I saw the Braun homer, didn't know Hand allowed all 5 of the runs damn. You'd think he would have been out before or when he had runners on 2nd and 3rd with 1 out.
85 wouldn't be a ceiling, probably more around 88-90 if everything went perfectly. Realistic expectations going by projections would be 84-87, with potential for a lot to go wrong with injury or underperformance.