No. He became a unified champion after beating Trout, so fighting Floyd next was the next logical step in his career, barring a Cotto fight. Which went out the window for that time when Cotto lost to Trout.
Great fighters lose sometimes. Cotto losses don't make him less great, do they? How about Pac, or Marquez? Canelo has already won his big fights(Lara and Cotto) after his one loss, and he's about to UD GGG
, but if two guys are top fighters at the time they fight, that's the only context anyone can see any one matchup in.