I think there's stagecraft going on, but agree the reasoning is very unclear. My guess is that concessions were made privately to end such sponsorship, but I concede that is the optimistic (possibly even naive?!?) view. Either way, Trump *cannot* be that dumb to make it about the quid pro quo for his business ties. That would be easily proven and splashed all over the front pages, and a guy like that doesn't get to where he is at by ignoring that reality. He's certainly a lot of things, but he isn't that dumb.