Albert Hall
It certainly seems that way.
EI is a part of IAG. It pays dividends up the food chain. All the UK/EU grant aid has been tagged as far as I am aware to the respective territory and cannot be transferred within the group. EI have only just recently received a small loan from the Irish government and its nowhere near anything that BA or Iberia have gained.
MAN went boom when the locos/charters went bust. Opportunites arose to serve a large market. EI had and have aircraft due for delivery that it doesn't need at the moment as Ireland is effectively closed for business from a travel perspective. So it saw an opportunity. It also has a substantial surplus of pilots in the ROI.
There were never any "job opportunites" for UK unemployed pilots in the first place and as such EI won't be taking any jobs away. EI and its UK based staff will be paying its taxes. In the future if (and its a big if) the opportunity expands then there may be opportunities to hire new staff. This will be dependant on a number of factors notwithstanding what level of bounce back there will be in the Irish market.