Whilst this could be the case in some photographs, like reading reflected documents or personal information, the ability to see a reflected light and a photo frame which therefore narrows your location down to one of 30-40 identical hotel rooms doesn't seem like personal information to be wary off.

You're far more likely to inadvertently reveal personal information in the background of a photo of your actual hotel room that you are from looking out the window.

reflected images in pictures might also disclose that you just got out of the shower and didn't bother to put on any clothes yet....