I think that Chelsea's place in the standings is not guaranteed too. Because as long as they continue to get bad results, the closest teams to them can catch up with them in time. They defeated Tottenham the last time maybe but they must keep winning and have their previous form back. Because Arsenal and Tottenham have the potential of decreasing the point difference with Chelsea to 2 if they win their missing games. I don't know what happened to Chelsea for some time but I still believe that they would get better soon.
True, Chelsea are under threat if they can't stop their underwhelming form. Of the 5 matches they ran, only 1 match they could win, 3 ended in a draw, and the rest lost.
Only 7 points away from 4th place Westham. They must immediately rise and win if their position does not want to be shifted.