That's what I saw too.
Whether it is a black back lesser or a black pastel lesser, or if you get a regular lesser, it won't hurt your chances for a BEL. It may, however, open up possibilities for other morphs, such as producing more black pastel lessers. Also, the BEL you get might be just a regular lesser/lesser BEL, or a black pastel BEL. I don't remember seeing a black pastel BEL, but I wouldn't expect it to look significantly different.