Just asking the question !
There is often difficulty contacting London info when crossing the Irish sea (that is a fact and I can personally vouch for that )
What difference could a radar service make ? We are getting into the realms of speculation and it seems very innapropriate to do that given the circumstances so I will leave it there for now !
Definitely not pointing any fingers merely pointing out something that may (or indeed may not ) be relevant but which certainly needs to be considered (IMHO)