What's the point of paying someone an inordinate amount of money to come up with a flashy name? Why not just call it AB-1, or some such. The traveling public isn't going to care; as far as they're concerned it's Amtrak.
You indeed have a point, Mr. Charles River, but it seems to be a tradition with Amtrak that their fleets of cars all have to be named.
Acela and Airo are what you'd expect from consultants that feed at the "One Mass Trough".
Funny how commercial, but not military, aircraft builders have avoided fleet names. I guess Lockheed Martin, when they built such, had names (Lodestar, Constellation, Electra, Tri-Star), but Airbus has totally avoided such. Boeing, and their acquired Douglas, had avoided such until it was time for the 787. That they christened the Dreamliner, but which to me, having flown overseas on such now twice, are the "Nightmareliner".