Owning GBTC safer than self custody?

I recently saw someone talking about owning GBTC, as it's safer that way.

There is no information on this online, so i'm presuming this is because a transaction can be reversed in case of theft or being forced to sell under duress etc. Whereas with selv custody, even in a complex multi-sig setup, there is no way to recover your funds.

Does anyone have something to add to this? I'm genuinly intrigued and would like to learn something.

Also, if someone can find a single article or person on the internet talking about this please link it, thanks.