Given the number of things in the “unknown” pile that are that way either because there are multiple photos attached of different organisms, or because it’s utterly unclear what the photographer was centered on, I think a fully automated approach is not a good way to go.
It also seems a bit perilous to add ML identification access to the Identify tool–it has the potential to massively exacerbate our recently discussed problems with careless ID. What if Identify had a button that let you add the ML identification, but only to, say, Kingdom or Phylum level? That would still go faster than manually typing it out, but would keep a human in the loop to skip over fundamentally ambiguous observations.