The safety stances and changes semantically belong in the blog.
They belong wherever the company wants to put them.
I think the OP’s idea is good. However I’m unsure that AI Labs would want to push the message that much.
Publishing a long and sophisticated statement on a webpage that only a segment of customers will read is a thing, publishing a short message or title that every user will see when launching the product is another thing.
It’s alike a box of cigarettes with “Smoking Kills” on it. It usually needs a legal obligation to achieve that.
But still, I like the idea.
Recent OpenClaw agents are maybe not (yet ?) self-replicating as far as I know, but otherwise they largely implement already what you describe. Their identity lies for a large part in the md files.