The way she described her power was as reflexive. A reflexive ability wouldn't get blocked because it doesn't target anyone. It passively reacts to people who target it. A
paranoid gun owner would still kill a Role Blocker because it was targeted. That's the way I saw the role. If it worked where it was actively blocked, then nobody who targeted her would have received damage. Now obviously it's possible nobody received damage from Eduarda, but as many people as there are who roommate yesterday, it seems improbable that so many roles have attacks at night. Jamie has confirmed this isn't role madness. So imo, I don't think I could have stopped a reflexive role/passive role, only an active role.