The BMW dealer knew about it. They’re just playing dumb to take the pressure off themselves.
And FYI - Harley has recalls all the time, so it’s not like you magically get everything perfect switching manufacturers.
What folks need to do though, is track & document the moment your bike becomes unridable - and look up lemon law in your state (if in the USA). Each state handles it generally but once your bike is officially unsafe according to the recall the clock starts ticking for the manufacturer to fix it or it legally becomes a lemon.
https://r18forums.com/threads/adaptive-headlight-recall-update.2777/page-8#post-42650