ayg wrote:

The latter is not a valid URL, and might not be supported by some user agents.
Furthermore, it's impossible for someone without either a Cyrillic keyboard or
technical know-how to type it. Granted, though: the latter is quite, quite painful.

It is not URL, it is IRI. Most browsers support it (because a browser must works
with local filesystems as well).
See http://en.wikipedia.org/wiki/Internationalized_Resource_Identifier

I think, it is impossible to type such long-long hex-coded link. And nobody will
insert the link in proper paper.

Another way is to use something like tinyurl.

It seems that someone has edited the template to not include page title at all.

This bug can be fixed easily now: https://gerrit.wikimedia.org/r/#change,3897 introduced wfExpandIRI(), used to solve bug 32748 (Printer friendly version of article must encode URL in unicode).