Not sure I have quite the positive take others do on this. On one level it is true that type-rated pilots are the first port of call for any airline. The reality is that in order to do that you have to go to airlines that you would rather not. BA can be choosy which airlines they recruit from, but easyJet cannot. Remember, these guys will be recruited specifically to be captains in a year or so - if you get through what will undoubtedly a rigorous selection procedure, then it will be a fantastic deal. From easyJet's perspective they have to take all the right people and that is easier said than done.
For me, it is a shame that the many top people from the numerous jet and turboprop companies not operating A320s are not eligible - not to mention the excellent ex-military types being hoovered up by Jet2, BA etc. For many of them, given they are often in their late 30s, a quick command at easyJet would be a much better deal than doing 15 years as an FO at BA. C'est la vie.