yeah but that requires several extra base layer transactions:

- tx to put base layer funds on the node

- tx to open a channel

- 2 additional txs to do a swap out (Boltz uses a 2 transaction swap protocol)

4 transactions is not a huge deal right now when fees are low but there's no reason to be that inefficient with chain space

With LNBig and its competitors, there's only 1 base layer tx: the one that opens the channel