Ah yes, you're right, I remember Darth explaining to a stacker about a Zeus wallet with ln funds, whereby they did something and it force closed their ln channels, as you say it was a process where the funds were converted to on chain and associated fees etc but most importantly they got their sats back albeit onchain 

nelom

bitcoin_beginners

Has Blockstream Changed the Recovery Protocol in their App?

spiderman

The recovery process for Lightning is not a simple seed import. It's a channel restoration process. If your phone dies, you install Green on a new phone, restore with S1, and the app, communicating with Blockstream's servers, should use your stored channel state to attempt to reclaim the funds from your old channels. This is a cooperative process.