I don’t like it much either, but the Koreans really need to step outside of their zones if they wanna manage the rest of the world. You’d think the middleman here would be the GMs but they don’t even seem all that confident in English to do so. We absolutely need surveillance by some means though, I don’t really see how else it would work.
As far as I’m aware in Battle League, you can only revive once (so if someone revives several times you know something’s up.) and everything in there is normalized for Level 200. I think the only thing that applies are weapon bonuses and effects, but weapon upgrades don’t I believe.
As for GvG, I’m not too sure since it apparently counts as a map where you could tab out via channel switching?