Have you considered actually raising these issues with the people who are in a position to... respond with authority?

People are very defensive about their bad ideas. I have lots of experience failing to convince them otherwise and have learned to spot and avoid those who are truly committed. I'm quite sure they would respond with all the reasons why I am wrong.

Besides, there is much more to this situation than meets the eye, and I'm not inside so they won't listen and may not be able to: (from stackoverflow: Hm... seems here is some background "war" between Perl institute (owner of cpan.org) and Perl foundation (owner of metacpan.org).

All the camels in my browser history and bookmarks are changing to four red dots. What do they mean? Hopefully meta can get legal permission to use the camel trademark for favicon!

I don't think breakage is going to be a problem.

It's already broken: redirects "fix" it. Some linux distro barfed recently on cpan being changed to mcpan... and it will get worse.