I fear that remote-proctoring can be liable to more false positives, if they are going to flag actions that "might" indicate a cheating sort of behavior, but they can't reach in and unveil your secret cheat sheet or identify your accomplice. I don't know the whole process after the remote proctor flags something, but it would seem more difficult for the student to defend innocence.

It's quite unfair of them to basically say "we're not competent enough as proctors to come up with evidence of guilt, so we'll use a guilty-until-proven-innocent system instead."