I forced every engineer to take sales calls and they rewrote our platform

> At the end of it, they were sketching a completely different architecture without my "PMing". Because they finally understood who was actually using our product.

I cannot help but read this whole experience as: “We forced an engineer to take sales calls and we found out that the issue was that our PMs are doing a terrible job communicating between customer and engineering, and our DevOps engineer is more capable/actionable at turning customer needs into working solutions.”

That could be the case, but I work in a mechanical engineering group as the only person on the team who can write code or automate things with it. We're in a large corporation with a sizeable IT support group that builds a decent chunk of the software in-house, and our team views much of it as terrible. So, I've rewritten applications or supplemented the "terrible" but irreplaceable software with tools to make our jobs much easier. I don't think that I'm better than our in-house IT folks at software development but that my perspective as an actual end-user gives me a much better idea of how to meet our own needs. I'm also highly motivated to make it effective, since I'll be using it. So, the title initially resonated with me and didn't see this comment coming. That said, I'm sure your point is valid in many cases as I'm not familiar with formal software development / project management.

100% agree with this take. I work in observability space. We use our own product to monitor our services, and being a daily user of the product helps us make it better. Our customers also agree. We get opportunity to talk to our customers doing product demos at conferences, etc, and all the feedback I have gotten is that they love the product! But wish it was cheaper.