I agree, but the problem is most likely the volume of translation that needs to be done for different languages.
Yeah, but my gut feeling is that if descriptions were right/better the game would become all time classic/best rts ever. When a player is new to it, they have certain expectations about units performance (kind of your understanding of how weapons and war in general work lets say). Once, for example, they use an mg on a closing in squad and no models drop dead, a new player might be really baffled and even frustrated. It is just an example. Anyway, if the description specified, for example, that mgs pin rather than kill, a player would not be frustrated. It works similarly with many other weapons (big guns don't make infantry lose health/models (at tanks), etc. Descriptions that are not too complicated but specify such things could make many more players love the game imo.