I'm beginning to see why many consider him a fixer. It really seemed like he was botching some of those break points on purpose
People consider him a fixer because two years ago big money was coming in on him to lose a match (even at poor trading prices), while he was a set up, playing a clay-court specialist, on an indoor court, and in Russia. People quickly connected the dots.
Luckily he has moved up the rankings and isn't pulling that stuff anymore. Same deal for a player like Dolgopolov. Moving up the rankings was their saving grace.