the earlier satellite photos show there was pier on one side and some floating structure on the other side.Well if it tipped over where the sail faces the river rather than the pier, it wouldn't have necessarily caused significant damage.
We can see that in the picture with the various cranes gathered around the pier, the pier has also been repositioned so we cannot rule out if there may have been some form of damage that we cannot visualize.
It's also not like we have continuous day to day good quality imagery of the events there anyway (if there was such imagery then none of this would be a problem because we'd all know what had happened).
IMO, the people who are using the satellite images we have at hand, to declare that there was a major accident or sinking are being silly. However I think people cannot use the satellite images to argue the other point definitively either -- the images cannot prove that there was no accident or sinking.
The pictures are entirely indecisive.
I don't see how a major accident where something blowing up or serious damage in the hull would leave the pier unscathed even if it tipped over on the other side.
It is far more likely that something small happened and it didn't mess up the areas around where the submarine was and they moved it elsewhere. And they need to fix up that are with cranes afterward. And this report blew up the situation entirely.