You could, of course, repurpose a data-center to run a bunch of emulators and have some h/w to plug in a bunch of SIM cards, but... why? It probably won't be very cost-efficient, and you need some bespoke h/w and virtualization solution to do it...
The bot traffic the news about bombing data-centers refers to is the crawler type. They collect information and index it for later searches, they don't interact with social media.
NB. valid and high value targets are not the same. Valid means it furthers some military goals while minimizing civilian impact. High-value means that it has a potential to alter opponent's strategy.
I'm on the fence about whether data-centers are valid targets. But, even if they aren't, it's not a terrible thing to do to bomb them, as it will not have any severe adverse effects on the civilian population. Of course, in the context of a war where there are much worse things to bomb. But the parent was making a comment about data-centers being high-value targets, and I don't see a way to justify that. It probably doesn't even factor into the calculations of the military strategists.