I don't see why Anthropic would be expected to publish default Claude voice or use Claude for their public writing. No matter how great AI is, it doesn't commit you to using it for everything.

And they probably know basic LLM tricks like "write it in the style of X".

When you read a blog post with Claude voice, you're seeing the result of someone who couldn't even be bothered to do that which is why they deserve extra lashings.