To save this franchise, they are going to have to do a lot of ret-conning/ course correcting from MoS and BvS anyway.
Personally, I believe from Tsujihara's statement when they pushed it back a year, after he'd watched the movie "many times", that WB's didn't like what they saw and took that time to try and change it, but it was too late.
If they tried to change the narrative it would at least explain some of the thematic inconsistencies in the plot and the bizarre editing.
It's acknowledged that they were already attempting to address some of the criticisms from MoS here anyway, and I see a lot of the post "Martha" scenes as an attempt to retcon the first part of the movie.
It's a very bizarre choice, for instance, to have your most successful character appear, devoid of almost all of the character traits that made him popular for 98% of the movie, then give him a couple of lines at a grave to make it seem that from now on and in the next movie(s), he's going to go back to the popular incarnation.
Immediately followed by a scene where he's straight back to his old ways

.
It would explain why a common criticism is is that the movie couldn't decide what it wanted to be.
Has there been any news about how JL is going, beyond workout pic tweets?