No-call on final UConn women's drive?

[Amesman]

Might be missing it some place else on the board here, but just getting to a keyboard now so still wondering ... anyone offer any rationale on the no-call on the final UConn drive in OT where both players go down in a significant collision and the call is simply OB, going the other way?

Without seeing it a second time, I initially thought it might be a good time for a PC. But if it's not that, how is it not at least a block? The announcers crowed about what a great no-call it was (without offering any reason why, of course) -- another reason to raise questions.

(If I could embed the clip, I would ... )