People are paranoid about hot wallets because they have too much hot, which is under paranoid because there's too much there in the first place.
A lightning node is inherently hot. A cold storage node not necessarily, you can do the node functions like mempool etc without a wallet ... Then attach a cold wallet to it like it's a database on a private network.
Having a key accessible to the iternet is what makes it hot, you might have Core behind a double firewall or proxy node such that it's wallet is not hot.
It's simultaneously overblown and under blown
People are paranoid about hot wallets because they have too much hot, which is under paranoid because there's too much there in the first place.
A lightning node is inherently hot. A cold storage node not necessarily, you can do the node functions like mempool etc without a wallet ... Then attach a cold wallet to it like it's a database on a private network.
Having a key accessible to the iternet is what makes it hot, you might have Core behind a double firewall or proxy node such that it's wallet is not hot.