I see a lot of people disagreeing with the 49-46 score, but IMO given the circumstances it is logically defensible. I personally don't agree with that score but that's not the point.
Everyone agrees Jones won 4 and 5. But I've seen a lot of debate regarding rounds 2 and 3. The 2 judges who had it 48-47 disagreed with each other on who took rounds 2 and 3.
Given no clear consensus from the judges or the fans we can conclude rounds 2 and 3 were close rounds and scoring could go either way. If it is both conceivable that someone could give Jones round 2, and conceivable that someone could give Jones round 3, then it is equally conceivable that someone could give Jones both rounds 2 and 3.
The bottom line is that if you disagree with the 49-46 score then logically you must also disagree with one of the 48-47 scores, and since I haven't seen consensus disagreement with either 48-47 then it stands that 49-46, while an outlier, is not inherently unreasonable.
The issue I think is that people want to use the scoring to tell the tale of the fight, and it feels bad that Reyes can put together such a strong performance, and have such a razor thin close fight only to receive a blown out 49-46 score. But the scoring isn't intended to show how close a fight was, it is merely a means to record the winner of each round. 5 very close rounds can still be rightfully scored as 50-45, and 5 rounds with a clear victor can also rightfully be scored as 50-45. The final score does not give tell to the nature of the fight but many fans treat it that way.
More liberal use of 10-10 and 10-8 rounds could help allow scores to more accurately convey the tale of the fight, but that is an entirely different discussion.