The author seems more about authenticity than boring-ness. And using the label boring vs bored, it comes to a similar outcome.

If I say, that guy is boring, he's inauthentic/poser/wanna-be, in my opinion I've failed that interaction. I am not engaging with him, I label him too mundane.

Yet, every person has genuine authenticity and need for connection, if you're attentive and patient enough to see it.

If you go around being frank and blasting your true opinions and true passions at everyone, you may miss a chance to learn more about them themselves, and move past the "boring" label you're putting, to see the real, struggling, suffering, but inherently interesting person underneath.

"he's inauthentic/poser/wanna-be"

There is an issue with these folks though. They quite often are hyper-gatekeepers because of their own insecurity about not being "legit." They tend to be over-critical and thus quite tedious (& socially precarious) to talk to.