Not Lulz, it was strategic. He makes more money not playing football and saying how he led a team to the superbowl (and then got BTFO next season). So when it looks like Miami might just decide "eh fuck it, let's shut up everyone the fuck up, get some points with the league for making the situation disappearm and hire him and look progressive", then Capernig praises Castro.
The only city with a pro football team that has a majority Cuban population, he praises Castro.
Sure praising Castro won't win him any points any place but SF or Seattle, but he's already a US-hating 5th columnist, he can't dig the hole any deeper with Castro....EXCEPT in Miami.
As others have pointed out though this isn't Capsasinnig; this is almost for sure his muhammadan girlfriend. She knows.