I don't really understand the intent and purpose of the post, but it is quite demeaning to Chelsea, and maybe the owner of the food outlet is a Chelsea fan to show his annoyance, he made a mocking post because he was annoyed. Of course, this post will make Chelsea even more depressed but if they see it otherwise it's not a problem.
Chelsea seems to be on the verge of collapse, and the only one who can change their situation is themselves, especially their coach. It's bad enough to see Pochettino making excuse after excuse every time his team loses, players get injured, and so on.
Chelsea will face Fulham in an away match, regardless of their situation, and also their opponents are in a better ranking. Chelsea is still the favorite. If they can win, of course, the profit from betting on Chelsea is quite good, but it's better not to bet on Chelsea, whose performance has been up and down and several matches have gone down.