Yes... The layman's view is something like this:
Whole complex: EuroDisney/ Disney Paris / Disneyland Paris (rare)
Park 1: The park (the only park)
Park 2: The Disney Studios, the Tower of Terror, the movie museum
Six years of "Disneyland RESORT Paris" have done little or nothing to change that, so I can imagine they're throwing in the towel.
Anyway, "Euro Disney(land)" was never a good name. It's tacky, artificial, and geographically ambiguous. It reeks of bureaucracy and troubled international relationships. (Eurovision Song Contest anyone?) The only place where people are proud enough of their EU membership for such a name is Eastern Europe.
And why not emphasize the proximity to Paris? If there was ever a reason to pick Disneyland Paris over Walt Disney World, it's that city.
Also, funnily enough, the one name that has really stuck is Disney Village. People love that name, even the French. The Festival Disney legacy has been completely forgotten.