Here's the thing, a role that has to vote to kill is nothing new to Mafia and werewolves, same thing with a role that cannot vote to kill. Those characters are always on the town's side, they just have wonky vote conditions.
Vera is still relatively new to Mafia, I don't think she'd be familiar enough with the role to make that up, plus it's information she volunteered. She could have just told us she's chaotic good, and I think many players would very satisfied. She didn't have to tell us about her voting requirement. To me, the extra information seems truthful, and fits what we know about her.
Frankly, I'm more concerned about finding the pacifist. Normally they're harmless (literally), but in a game with a minimum requirement for total votes to get a kill, based on the number of players, they could actually become a serious problem in late rounds of the game.