No one denied HoS comparable to Kevin (she have the freaking body of Fuhua a MANTIS like Kevin and a Herrschers Core to boost, not only that but also she have Fuhua memory with her skill and full knowledge about Kevin especially how he fight, that is a huge advantage), but the fight is off-screen so not much knowledge about the fight are known to us. On the other hand she literally toy with both Kiana and Bronya very casually, she could have ended them if she serious; the fight was already one-sided from the beginning if we talk about strength even HoS being outnumbered; but the main focus of HoS is trying to convince Kiana and Bronya that she is the real Fuhua, so both of them and Fuhua known this and take advance of this and turn the battle into a psychological battle, they talked more than fight, but still without Fuhua guidance they could probably lost. HoS start to serious is the Animated Short Video, and even with HoV power Kiana is on the losing side, she struggled hard and if she not (asspulling) Edge of Taixuan she probably.....again.......lost, even then Fuhua still need to do the last move by seal herself with HoS cause if the beam struggle (with Dragon Ball style) continuing longer Kiana will....again....probably lost 0.0.
So yeah, claim VD comparable to HoS is wrong, HoS literally stomp both Bronya in her HoR form and VD Kiana which use half the power of HoV