Why? It is capable of full self driving. That has been proven numerous times. It is however not capable to do this all time. I ask again, give a better name that describes the function FSD currently offers. It is most certainly not a lane assist.
If "full" doesn't mean "completely autonomous", what would you call a system that can drive a car in exactly all the circumstances a human can?
Joking aside... 95% of the drives are with 1 or no manual disengagement. The disengagement does not have to be critical. I would always disengage to park because I am faster. Is this not enough to call something FSD?
I can think of half a dozen terms off the top of my head that would better describe what its doing, but they aren't quite as punchy, and critically, they won't give the impression that the car is capable of functioning without oversight. Being able to obliquely claim-without-claiming is very much the point of the current terminology.
* trip control
* trip assist
* co-pilot
* auto steer and throttle
* partial self-driving (i.e., what it's actually doing!)
* hands-free steeringAll the names you have given suggest, that it is not capable of managing a complete trip but it is.
If you do not need to do anything for 95% (often 100%) of the trip, which is true for most FSD drives, this would not qualify as FSD for you? Then we can end this discussion and just have different opinions.
"Mostly Self-Driving"