Hey Wally09, I see your relatively new so here is a suggestion. Just use the search function to find out more than you will ever want to know about "what oil to use".
To answer your questions I think that once the marketing hype 'wave' went through the system, riders realised there are better oils out there for less $$$ than HD wants for theirs.
That and the fact that your hard earned $$$ in part goes back to the dictator Chavez in Venezuela via CITGO, the Venezuelan oil company who presently holds the contract to produce lubes for HD.
Besides the above as the primary issue (for me), do you want to use lubes in your ride that were produced by the lowest bidder?
I have run HD 360 in my 09 UC and it's not a 'bad' oil at all, just better stuff out for the same $$$ or less if you take the time to investigate.