Acceptable = Marginal. Only other rating is poor. If you are driving 80 mph (speed limit on Wyoming) in dark and rainy conditions, Teslas normal headlights are unacceptable in a car of this caliber. They have improved relative to the initial ones on my Model S which were atrocious but they are still bad. Even lowly Subaru has modern headlights let alone our BMW x5 plug in which have amazing headlights. I don’t know if tesla is trying to just save a few bucks on parts or trying to get buyers to upgrade to performance but I will wait or go elsewhere for an EV. headlights are too important to skimp on given the driving I do.
the IIHS review states "acceptable" for MYLR headlights vs "good" for MYP headlights.
reading the text, both provided good results on curves and the matrix only improved on glare ratings.
it's your call but I don't think headlights are reason enough