I think it's for those who may not have the luxury of additional liquidity let's say I am a business, and I need the capital I would need to close my channel, having the loop in and out just gives much more flexibility. I think if they can combine this with RGB and we have BTC backed stable coins on LN, loop in and out will be even bigger
I recently took my node offline and sold it to a friend, I am building a new one now, waiting for my Raspberry Pi to be delivered, once I set it up, I'll share my address and open a channel with you. I also found some peeps on microlancer willing to open channels.