I don't know, but drive chains really sound like messing with miner incentives. The same problem as with other smaller crypto being overpowered easily by a fraction of the Bitcoin mining power, but then inside of bitcoin itself.

But it is indeed a way to scale, there are actually many ways how it can be done. The problem lies in keeping security in those scaling techniques while they are being used massively. There are other methods asswell, hashing itself is really fast, so the ability to cryptographically secure aspects of ownership can lie in many hands. Lightning has its usecase but indeed it should not be the only one as the inperfect aspects are bound to give rise to problems.

A while back I proposed in a post 
(bookmarked, unaware of others who suggested the same but I didn't put in the effort to search for them)
 about reducing stress on the timechain by trade that includes seperate utxo's and lightning, a few months later I encountered a kind of implementation of this idea where miners can trade their new mined utxo's for lightning. 

And there are possibly other methods too.