Eddie Howe is missing 13 players, some of whom are injured and some of whom are suspended, so I think it's very reasonable that Chesela will take advantage of their weaknesses to secure full points. You could say Newcastle was just lucky because they played in front of their own supporters, otherwise their situation was very complicated.
Knowing all this, Mauricio Pochettino will not miss the chance to earn a couple more points for the team. Most likely, Chelsea will press with attacks. Such a chance does not come along often without taking advantage of it.