well, that's basically saying "hardware wallets can't be used practicably as a hot wallet", which will always be true. You could do it (in theory), but it would mean manually signing everything, so you couldn't realistically route payments.
Yeah and i should emphasize it's the reason HW wallet manufacture don't bother support LN. Even though there's exception for Ledger Nano X (and similar) which aimed for mobile users.
what I meant was, you can skip the stage where you fund the hot wallet, c-lightning negotiate the channel opening with a Lightning peer, and just fail it if you don't fund the opening transaction
Good point
