I don't think I agree on (2), because there are only 5tpd each way, including TP, and then at uneven intervals. However, (1) is a fair criticism and could similarly lead to situations like Westbury, Ninian Park or Watford High Street, all of which are "just" off the main route.
It's just the one word "mainly" though; it is mainly served by a branch line service. As such, I don't think it would be fair to penalise for this one simple mistake - but I will say that we all should be more careful and that future instances may not be treated the same way.