this does nothing to address "the whole point is to get rid of micro-payments."
no one wants to pay to do something (micropayments), at the very least they do not want it to cost money (the cause with Twitter or Facebook), at the very best they get some return (Steem).
i'm sure there are many great use cases for lightning networks, micropayments for content and curation of it are likely not one of them.
i will go out on a limb here and claim that micro payments are completely uninteresting to sentient beings, however great for computer programs needing to do resource allocation in decentralized networks which need to function like agoric computational systems.