Has anyone heard of a DUB flight departing/arriving at all this week... they're a bunch of unorganised idiots.
PSOs will be the lowest priority for Aer Arann at this stage. If a plane goes tech during the day these flights will be the first ones to lose out. If the MAN and EDI flights had worked out they wouldn't be treated in the same way as the PSOs. That said, you're almost certainly better off long term with flybe...I get the impression that if a thin route can be made to work, they will make it work.
Hard to see many having confidence to book the PSO flights now as there is such a high risk of cancellation, to be honest they'd be as well to pull them now rather than keep them going intermittently until July.