Someone needs to remind Karl that weight or physical appearance is a non-factor when you make amazing music. If Karl wants to focus so much on shallow looks, he can pay more attention to his child prostitute muse.
He doesn't shade Adele. He works in fashion where weight is what people obsess about the most so when talking about beauty, he's not going to avoid it.
I think it was him who tried to shade Whitney Houston during an interview, referring to her as the "Princess of R&B," and she got him together. I have the gif somewhere on my computer.