As for Dublin - Dallas remain to be convinced of the business case to be honest.
Are there really that many that somehow need to connect to for instance Tallahassee, Killine, Amarillo and the other similar forty or so mid state towns that make up the main points from Dallas. It might claim to be among the most connected on the planet however the VAST majority of the routes are simply feeders into the big city and a railway type regional hub of rather insignificant global importance. Yeah i”ll wait for the bashing from Texans but just look at the rather limited number of international routes that actually exist.
Over on the Blueish site they have a thread on the monthly foreign long hauls and frankly the numbers are laughable.