ALMCC
Aer Lingus have done the same thing at BRS. In March they re-commenced the DUB-BRS route but with only one lunchtime rotation per day (operated by a B 737-500) in competition with Ryanair's three daily rotations.
Even more strange is that their rotation arrives and departs almost at the same time as Ryanair's lunchtime rotation. I have seen them fly past my house on approach almost in line astern on some days.
I don't know how well Aer Lingus are doing on this route. A couple of months after they started, BAcX (who code shared the route with Aer Lingus) withdrew their two daily ERJ 145 rotations.