It wasn't all that bad. One could still get hints of sweets through the bloodstream. And, you'd be surprised at how different it would taste depending on blood type, possible abilities, or if it was human vs. non-human blood.
Venoms can be a problem. It still can transfer, and never mind that I've known several hunters who had done something similar to glamour their blood into being more appetizing, only to have the unfortunate side-effect of causing drowsiness, among other things.
It's a bit more of a complicated issue that I'm probably making it out to be. Groups deciding to go feral and let their baser instincts rule their lives, and others who like being a bit more cruel to their underlings, even moreso than some humans.
But I'm sure you wouldn't want to hear about vampire politics. It's admittedly a confusing mess on its best days.