Trying Play FM Dublin now - at Wednesday 14th November 11:42am (London - and I believe Dublin - time) the station is on-air. So problem "gone away".
I can think of various reasons why the station would continue to be listed;
- It requires station management to notify someone that they are permanently of-air - and no one did, because they knew they were not permantly gone.
- The station's off-air period began between the occasions when iTunes refreshes its list of current stations, so that change had not yet been noticed.
- Someone knew that this was a temporary off-air transition and decided there was no point in removing the station from the list. If it was my station, and it was off-air only for a temporary period, the last thing I would want is for iTunes to remove it from their list. That says "station is gone for good". Leaving it on the list says "it's not on-air now, but it's worth checking again at another time to see if it comes back on".
If you were simply seeking publicity for the station, congratulations. I quite like it (but don't tell anyone under 24 years of age!)