The parking lot to hub would currently be easier than the UOR site A garage to CityWalk experience. People go to CityWalk for the shops, restaurants, and entertainment. Generally these people going at night, to avoid paying for parking. This could potentially be no different at EU.
And yes, theme parks have a number of restaurants and shops, but the number of full
service restaurants at the EU hub far outnumber anything we've ever seen at Universal. That's just what we see as confirmed... If we see a comedy club, dance club, concert venue, theater, etc, then it's pretty much game over.
This is how it currently works at UOR, except replace "land" with "park."
As someone who has visited the parks hundreds of times, I see no difference in dodging people in CityWalk compared to those in the parks. In fact, it's *much* less crowded in CityWalk, and less of a headache, compared to actually navigating inside of the lands themselves.