We are our own worst critics. The reason Bitcoin works the way it does, with strong focus on security first, and features to be seen on other layers for example, is because we look at our own work with a harsh critical eye and that mean we know how to improve in the best way possible.
If you're sad about what he's saying about LN, imagine what he might say about Proof of Rich- I mean Proof of Stake or bigger blocks.
The Bitcoin community has found LN to be the best scaling implementation, and all criticism of it is about making it even better.