Aye, I've thought about that in the past too. Train takes 1hr 40 from Antrim to the Waterside Train Station and are unfortunately intermittent at best.
I think this all reflects on under-investment in NI as a whole, but undeniably the NW in particular. BFS should be much more accessible to NI's second city than it is (in lieu of LDY having a larger route network). The train line goes pretty close to the place, so a railstop is a no brainer.