Wine c.f. Mono

[Andy Burns <fedora-extras adslpipe co uk>]

I know the the question "Why no Mono in Fedora?" has been 
asked/answered/argued to death, I'm not trying to re-ignite that again.

Given that Mono is not allowed into Fedora (because it implements ECMA 
standards 334/335 for C#/CLR which may infringe Microsoft patents) why 
is it that Wine (which implements ECMA standard 234 for Win16 API and 
may also infringe Microsoft patents) is being considered for inclusion 
into Fedora Extras?

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171526

Searching uspto.gov for assignee=Microsoft and abstract=API provides 
many possible patents that Wine could infringe, though as pointed out in 
section 6 of http://www.kegel.com/remedy/remedy2.html nothing has forced 
Microsoft to reveal which of those may protect Windows.

Is it largely a question of how far "behind the curve" Wine is perceived 
to be compared to how close to "snapping at the heels" Mono is seen?