The fact he’d rather keep it for a few extra days to get it right does inspire confidence. I’d rather be without the car for a bit longer if that means I get a better job done on it!It's all relative, and detailers are obviously very particular (if they're any good)
Before I got my M3P the guy I've used for all my cars warned me that I "wouldn't be happy" and that "they're all bad". Mine did end up being "one of the better ones", according to him, basically damning with faint praise.
I haven't seen anything that suggests that MIC cars have any less of a problem with orange peel, at the very least.
Take comfort in the fact that there is basically no Tesla that is uniquely brillant in that regard, unless it's had a full respray