Looking at the historical flow on the gauge page you linked to, the flow was between 48-52cfs when we were there in October 2017. The photos should help you make a judgement. It was hovering around 40cfs when volcanoclimber did it, and about 37cfs when bezzantine went through.
I would think that up to 60cfs would be no problem at all. If it was above 80 I'd be cautious. 100cfs is often an indicator to me that a creek can't be crossed safely (though every creek is different based on depth, width, and slope). I wouldn't want to hike many miles in that kind of flow.
As for the hike out, the initial part is steep, but not a problem for anybody who regularly scrambles in the desert southwest. There are a couple of stretches of exposed sandstone slab that require a thoughtful traverse or scramble, but this too, is not too challenging unless the view down gets in your head. See [ photo ]
-- probably about the worst of it.
The biggest issue is the distance, terrain, heat, and lack of water over those 5 miles on the exit route. There is no shade. I think every triplog posted here reiterates that this section should not be taken lightly.