Let me give you a more serious comparison. If all of these Pablo fat jokes and slurs were instead racial jokes and slurs, or sexist jokes and slurs, would it be any different?
If I were mostly very competent at my job, then had a bad month and got demoted, and then men made jokes about how I was a dumb bimbo who slept my way into getting my job, and that women only have one good purpose, or that women belonged in the home. Then when someone called them on those comments, they said but oh, "this has nothing to do with her being a bimbo or a woman, she didn't attend the training that was offered last month, so she deserved to get demoted". In the meantime, the bimbo/sexist jokes continue to be made at every chance they get.
Would you not think that these people had more of an issue with their perception of me as a bimbo/woman, rather than with the fact that I didn't attend training?
What if they were racial jokes and slurs? Would that be okay?
At the very least, it takes away from the sincerity of the argument.