I don't agree with the article though and I dislike the influence it has had. I have seen engineers use "Boring" to justify "I know this technology" for situations where that technology is a bad fit.

Conversations about technical solutions are bespoke, there is no one term that can or should be used to guide them.

Poor choices whether influenced by this article or engineers chasing CV points are no different. Boring technology is a tool or communication device like any other. I hope in your situation you were able to influence the engineers utilising it poorly to reconsider.