So...if we list them (and adding Usacheva)BVs with level 4s:
Liza at Rostelecom - 67.97
Kamila at stage 2 - 74.31
Alëna at Rostelecom - 63.85
(If I have calculated correctly that is... )
Trusova 89.82
Valieva 74.31
Shcherbakova 73.68
Tuktamysheva 67.97
Usacheva 63.85
Kostornaia 63.85
And for me, that is proof that BV doesn't matter if you can't deliver it (ehrm...Trusova), it REALLY is important to have a clean skate and collect those GOEs...