The shoulder B was so people who always moaned about not being able to carry their hand-held, top-handle bag.
And for those that find the Shoulder Birkin odd looking, the Birkin is itself a HAC elan.
I don't mind whether or not people can readily buy a certain bag but I don't think the H should lie to any potencial customers. Luxury always operates on different levels and services/products that are special/popular should be for loyal, local, longterm customers first.
My unpopular opinion is although I like quite a few of all H's colours, I still prefer black.
Another is I'd rather not have diamonds on my bags unless it's for evening...and even then, probably not.