It doesn't matter how good a team is. It is almost impossible for any team to win under such circumstances. That's what happened here with Tottenham.
The big mistake was when Spurs decided to focus on attacking, pushing all their defenders forward to the halfway line. The lack of these players did create a dilemma for Spurs, and in the second half, during injury time, chelsea really capitalized on this by delivering a pass to their striker. There's no denying it... Chelsea's performance was truly captivating and exceeded most people's expectations.
it seems that Chelsea is indeed very good at facing big teams like Arsenal, Man City, and Spurs, rather than going up against underdog teams, where Chelsea appears to face a bit of difficulty when dealing with teams in the mid to lower rankings in EPL.