I'm glad that DevEx is finally a 'coined term' because I've been shouting into the maelstrom for most of my career.
It is so common for someone to try to gently tell someone that their system (or at least the description) is a steaming pile of self-indulgent garbage by saying something like, "I don't think that's a good idea," or "This seems pretty complicated," only for the originator to take this as an invitation to continue evangelizing (aka talking about how brilliant they are).
In the age of everyone working remotely using screen sharing software, there is no excuse for not spending time watching someone try to use the tools or apis that you've ~foisted off~ given them. I wish it were just ignorance but too often it feels willful. Nothing will deflate your ego like trying in earnest to teach someone to do what you do. Or fluff it up, depending on how you choose to process that information.
To repurpose an old aphorism: if you meet an idiot in the morning, you met an idiot. If you meet idiots all day, you're the idiot.