I agree with point 1, nearly completely. A lot of developers could take a lot more responsibility for understanding the environments their applications operate in, but I get it.
Point 3, at least in my shop, you're just wrong. I don't know anything about what you're writing. I probably don't even know what problem it is supposed to solve. You are mistaking the highway road crew for mechanics.
Point 4, in my shop, we provide a lot of documentation and guidelines for this sort of thing. Developers are responsible for knowing if their stuff is going to fall outside of those, and come to us to work something out. Again with the road metaphor, if you drive a semi into a single car garage, you're the idiot, not the person who built the garage.
On some of this, I'm taking a hard line. I do, in fact, end up doing a lot of troubleshooting with developers. But most of my team does not write code. If you want more senior ops folks who also have a coding background, come on over! There aren't that many of us who are any good, and I would love to hire more.