It should...
The CinemaScore of A- is an indication it has 'legs' (the whole purpose of the CinemaScore is to evalute long term success based on initial polling of the audience). Same with the PostTrack's "Recommend" score of 73% (lower than TLJ's 82%, but still pretty good).
The users' rating on RottenTomates has gone from a 55 on Thursday to a 59 now. IMDB's user's score went from 70 to 72. As people see the movie, they're giving it a rating much higher than the initial haters who want to burn the whole franchise down and start anew, and so, those scores have been going up.
The critical scores haven't moved, and they're OK, but not as good as... ready for it?... as well liked as TLJ was among critics.
While it's possible the Box Office will be terribly weak, it's also possible for it to have legs with word of mouth. Remember, we had haters doing a jig with how poorly Spider-Man Homecoming and TLJ was doing... initially. But then, over time, they made their money's worth.
No one should be writing an obituary yet.