Yes, this viewpoint is largely absent in Western media. I think this applies to Russia and Putin in general, as well as most things:
In the 1990s, someone removed the 'fence.' It was rebuilt in less than a decade, and work is still ongoing. People on both sides of the fence are still mostly confused as to why a fence is needed but agree it’s useful.
I read his letter. He has some valid points. However, he believes in some crazy conspiracy theories about Butcha that he backs up with information he found on the internet:
It almost feels like he's looking for facts that back up his story (selection bias, confirmation bias). Maybe he's also an investor?
He seems to be very consistent about which side of the fence he sits on regarding politics:
https://en.wikipedia.org/wiki/Gerd_Schultze-Rhonhof
My biases tell me he's an angry old man sitting on the fence.