[Tlhingan-hol] friend of Maltz

[BT Yahoo!]

Tlhingan-hol email group started when the Captain Kirk stories were the first known Star Trek stories, and (as far as I remember) it became doctrine that Captain Kirk captured a Klingon called Maltz, who revealed the Klingon language to Starfleet (and to Marc Okrand). 

But the later coming of the "Enterprise" series

https://en.wikipedia.org/wiki/Star_Trek:_Enterprise

is set well before Kirk and Maltz's time, and in it Earthmen know the Klingon language, as if it was in an information package that the Vulcans gave to Earth. 

This seems to be a case of an established fanon being contradicted by later new canon.

https://en.wikipedia.org/wiki/Canon_%28fiction%29#Fanon

How does Tlhingan-hol email group accomodate that?

The "Enterprise" series is later than Captain Kirk in real time, but earlier in Star Trek scenario time. A bit confusing.