That seems unlikely. The Brexit vote is almost two years away now, and if anything, the negotiations have never looked better (not that that's a high bar). Why only now, and why in a so weirdly unrelated way? If they were sorry about Brexit support, just, uh, say it? Perhaps do some Europe-themed promotions?
It seems much more likely that social media simply isn't a very high ROI marketing channel for them, and they're capitalising on general unease following the CA debacle.
It seems much more likely that social media simply isn't a very high ROI marketing channel for them, and they're capitalising on general unease following the CA debacle.