I just take the existence of this model as a lot of spicy straight girls or closeted gay/bi people's way of rationalizing why they are queer (or are queer but not exactly fully gay or bi).

I've heard 2 different stories of lesbians that go like this: She's trying to convince herself she's bi, and using the split attraction model to justify why — even though she knows in their gut that she's not really as attracted to her boyfriend as she should be — that it's ok, or normal, or to be expected from them.