The lack of adoption of Lightning network is as a result to poor marketing, this is what Ethereum does better than any project in the space, I think the team think they only need to build the network and users would rush using it when there are many competing solutions in the space.
The Lightning Network is not used by any people because it's not easily accessible, and useable for newbies. Stakenet is building the infrastructure to bring Lightning Network to the masses.
You'll see
Poor marketing for Lightning Network? Trust me,,, there is no need to market that just as there was no need to market Segwit. Users choose with the wallet and once Lightning wallets are easier and adopted by wallet providers, they will be the ones doing the "marketing". A lot of Stakenet talk I did not know it uses Lightning?