Well it came from a very reliable
source so it must be true!
To be serious, beamwidth's figures are more accurate although they looked slightly on the high side to me, maybe by about 5000 or so.
There are definitely vacancies in Dublin. Many retirements over the next 5 years. All ratings required, the current shortage is Area, but if Dub mgmt are smart they won't wait to start a big Area course - they'll get a few people rated in ground/tower first.