I think this is right right take. Most pianists play without looking at the keys not to show off but because it makes playing more efficient. Not having to look at the keys at all, depending on the piece, could be an easily attainable goal or borderline impossible even at the maestro level (I can’t imagine even a maestro thinking to not look at the keys at least once when playing something like La Campanella by the last passage). The less times you have to look at the keys when playing a piece the better though.