I thought it was a robbery when I watched it live but on rewatch I thought Albazi won somewhat convincingly.
R1: The strikes landed were more or less negligible other than the big overhand right KKF landed at the end of the round when Albazi was taunting him. Amir had already built a lead by this point due to his forward pressure, KKF spent over 75% of the round on the backfoot being pressured and rendered almost exclusively defensive. It was a close round that could be fairly awarded to either side, but I definitely leaned Albazi winning the round.
R2: This was a very clear round for Albazi when I rewatched it. He was the one pressing forward for over 75% of the round and landed the better and more meaningful shots. When Kai was landing it was one shot at a time in contrast to Albazi who was also landing singular shots but they were overhands. Optically this was a terrible round for Kai.
R3: The control + submission attempt for Albazi won the round.
R4: I leaned Kai winning the round because he began pressing forward and was stringing together combinations instead of singular shots. Albazi did land the bigger and more meaningful shots during the round and awarding it to him is reasonable, though somewhat generous imo, but this was a much better round for Kai optically.
R5: Clear round for Kai theres no way to give Albazi this round he was getting pieced up.
I think the reason it felt like a robbery live for so many is because Kai ended the fight very strong and won his rounds by large margins while Albazi won his rounds on very thin margins and with not much offense. Definitely not a robbery though imo.