I'm pretty confident in saying the majority of users here don't like meta either -- the userbase on lemmy is predominantly people trying to avoid corporate social media.
ByteDance and Meta both privacy nightmares, it's just a question of what fucked up things they doing with the data.
This is one of those situations where it's better to ask forgiveness than permission. Even the most cold-hearted corporate ghoul is going to understand the cost/benefit of going after that family isn't remotely worth it.
Yeah, the lawyers are going to say "no". But even if they're stupid enough to sue: some suit that isn't a moron is going to tell them to drop it during the ensuing PR nightmare, and the family will be swimming in donations.