you are quite sure that even if there was a dedicated channel, they would use it? There is a channel for trade but I still read WTS / WTB in global, there is a TAB and a tool for searching for groups but I still read Globla LFM NEED 1xetc. AA / EXP / GEAR!
BTW there are two channel and GLOBAL and GLOBAL(ENGLISH) is global(english) where people should only speak English, but it is desert, global is simply the international channel!
There has been national channels (availability depends on the game client's language) for ages now. Global is just international, perfectly normal to see plenty of languages there.
It would be nice to have access to any channel you want though, on Fury many Russians have their game in English (so no Russian channel to speak with their comrades) and some like me have their game in English but actually speak other languages (like French, and I can understand Spanish a bit as well)
Expert Shield of the Risen opener.