You must not watch a lot of the sport, or haven't been for very long then? Quite often we see fights where a majority of fans and press row expect wide for one guy (98-92 in a ten-rounder or 117-111 and up in a twelve) only to see it flop the other way and elicit a huge collective groan of disbelief (no matter how many times one's seen it). Conversely, maths. A fight doesn't have to be "6 rounds off" to fulfill my criteria. You can have a 7-5 card for the loser and consider it a robbery if even six of those seven rounds you gave the official loser CAN'T have been the official winner's. That is still a close fight, the recipient of the robbery still won (or had a serious argument in) five rounds - but robbery nonetheless. Lastly, if the criteria seems overly strict and you think it can't apply to all that many fights - the conclusion then is that maybe fewer (by far) true robberies exist than fights knee-jerk labeled as one.
The averaged fan card there did have Canelo winning rounds 1-3 & 10-12. Round 3 by a sizable margin. Rounds 10 and 11 were much closer.