The current link [1] is a lot more concise and informative (specifically, what users should do) IMO. The blog post expands a little on BGP hijacking but honestly it could be summarized in one short paragraph.

[1] https://community.letsencrypt.org/t/acme-v1-v2-validating-ch...

I don't see how that less technical, more full of fluff post is better for readers of this website

I'm fine with keeping the original link. But the original post doesn't actually explain why this is happening, while the suggested replacement explains the problem.