Not really. It's not like the vampire ladies were ever willinglying serving them. He's forcing them to be his servants.
That's not entirely true.
While Reanna lost a duel & Zsofia admits she "seduced the wrong person", so they could possibly be unwilling changed, Adaobi says she gave up her old life for a new one. Meaning she is possibly the only one to willingly become a vampire, if for no other reason than her own desire to keep learning & understanding the world.
Tinkerer actually told me how Vampirism works in this setting.
-The sire will drain the mortal of their blood, leaving them essentially empty.
-The sire then replaces their blood with some of his/her own.
-The vampiric blood then reanimates the newly created spawn. Having the blood of their new Master in their veins is what creates the "Bond" between master & spawn.
Not sure if they HAVE to be willing or not. He never mentioned that.