The regulatory pushback makes total sense when you think about how people actually use these systems. If someone reads "Full Self-Driving" they're picturing a car that handles everything on its own, which is just not what Tesla's got right now. European regulators have been pretty strict about this kind of thing - they want the marketing to match reality, and calling something "full" autonomy when it still needs constant human attention is... well, it's misleading, right?
There's also a liability angle here that matters. If something goes wrong and the driver thought they had a fully autonomous system but actually didn't, that's a legal nightmare waiting to happen. Regulators in Europe especially tend to be cautious about protecting consumers from that kind of grey area. "Assisted Driving" is more honest about what's happening - it's helping the driver, not replacing them. That naming actually reflects what the tech can do, which should make approvals easier across different European markets since there's less room for confusion about capabilities.