The Dublin car parking appearing as Shannon is nothing more than the DAA shared services team being located in Shannon airport.
Shannon didn't become profitable overnight - that's was the optics of debt forgiveness with a dose of politics added in.
In saying that, Shannon nurtured and grew ARI into a profitable, respected global business that is still winning major contracts in hubs like Abu Dhabi. It's now run from the link building in Dublin with no more than a skeleton staff remaining in Shannon and the decades of corporate knowledge lost forever.
Ryanair killed cityjet on the SNN CDG route and killed RE on MAN.
Perhaps EI regional will try CDG with their new superjets, although cityjet know the market all too well.