Morkonon,
I understand your point but I think you're being coy/devil's advocate.  Yes, they have historically made nice hair and I don't blame anyone for using a base mesh.  Hair is complicated and messy potentially.

But really, these two in particular, are the same whether they are the same mesh or not!  I mean, my point loses a little steam if they are different meshes, but not much.  The point is, it's the same hair in spirit and to put both out at the same time at different sites, presumably (and this is key) EXCLUSIVELY to those sites (to benefit from higher cut) is underhanded IMO. 

I think we can all agree that there was absolutely NO reason not to issue one package that includes the differences between these two, which are microscopic.  Either a Morph or a longer Transmap for that section of bang.