i tried to read ME&S but it felt like he was trying to just distill HA for dumb people, i think i got through about 1/4 of it before giving up
but yes, lightning is an open federated design, i can imagine building a redundancy protocol so that multiple providers could aggregate and fan out their infra to provide highly available big channel infra... it can already be done with plain simple network failover protocols that already exist, just a matter of tailoring one to do it with LN... the other thing it needs is a shared, highly consistent shared state data system so the multiple channels don't clobber each other's movements when a channel gets to the edge of capacity in one direction
see, that's the thing, i can see the network tech and the econ at the same time, really, it's just a matter of me finding someone with the money who is satisfied that i have the capacity to engineer it, and it would be my job for a decade to make this shit rock solid
but instead i'm here building a shitty middleware for a shitcoin gaming social platform, such is life