Lightning has grown beyond its two original creators and now has a healthy community behind it. Worth mentioning are Rusty Russel (iptables, netfilter, some network layers of the Linux kernel) and the fine folks at Acinq (acinq.co).

Yes, it still has some rough edges but it's now mostly usable. https://medium.com/coinmonks/lightning-network-2018-to-2023-...

Besides, about 80% of transactions within exchanges are actually off-chain, so this is nothing new.