They don't need it for targeting, since they have GLONASS which is OK over Russia and surrounding areas like Ukraine. The images are the original data and they can use that data for anything they want. However there's 2 problems:Yeah, I'm not an expert but the relative intactness of torn off part of the bridge could have just happened due to damaged supports tearing after the truck bomb.
Ukraine has not talked about the mode of attack, Russia claims it is a truck and there's footage that seems to show exactly that. There's no real biased interest for Russians to claim it is a truck over a preplanted charge or a bomb stuck under the train etc. Either way it is still an equal level of failure in Russian intelligence.
The thing is while Russia may have civilian level access to Chinese satellite intel, almost all Russian weapons courtesy of their "modernization" never acquired ability to be guided by Chinese ISR, and the PLA itself isn't involved right now in directing Russian strikes either. So having some images don't help too much.
1. can they quickly distribute the satellite data to Russian soldiers in the field? So while command may have photos, field units do not, and don't know what's going on. When field units don't have the images and command does, it causes trust issues to arise between field units and command. Ukraine doesn't have this problem, they have NATO integrated data terminals.
2. can they identify targets of interest? Satellite images are a vast amount of data. Russia has only recently begun the process of sorting satellite data for useful features. Ukraine doesn't have this problem, the data is given to them presorted in a human readable format (which is extensively processed and far from the raw data of the satellite).
3. do they have a sufficient update speed? If they buy, there's a lag time between when they make the request, and when images are sent. Ukraine doesn't have this problem, they're just given the data.