Short answer: Nope :-)
Long answer: BFD is not supported on mgmt0 interface, which is usually interface used for vPC peer-keepalive. Even if is not mgmt0 interface used for vPC KA, there is no advantage of having BFD enabled for this. Anyway, KA by itself going down will not impact in any way the vPC domain. You need peer-link as well to go down.