Levy and the board have a huge problem right now, if they sack the clueless one the media will ridicule the decision and make the club out to be a joke. If they keep him on until the end of the season, the odds are he will alienate more players, fans, sponsors and potential sponsors with his bitter rants and embarrassing actions. Either way the clubs image will be damaged.
Any player who is so touchy that he can't handle interim manager for 3 more games can fuck off for all I care. Same goes to any fan. Don't think sponsors have that much of an issue on what he has done or said recently. And they know he will be gone in the summer too.
However given how bad publicity it would be to sack what is practically an interim manager who has 36 points in 19 games with three games to go it would probably be an issue for sponsors.