I've been working a lot with SEO for clients lately and I've noted that they are requiring access to the template in Webmaster Tools now to establish that a site is mobile-friendly.
Google is ranking sites lower when CSS and js for the template is blocked. The current default robots txt blocks those folders.
Is there any negative result of unblocking the
/media/system folders via the robots txt? I assume they were put there for a reason, but it looks like in Github some of the development versions don't include those folders.
What's the pro and con on that?