It is ok bro, Airplane mode is not restricted for anyone. Everybody can use it, if they want to. You can attack the others using this mode, so do the others when they attack you. I do agree that it helps a player to beat higher might targets but it doesn't mean that he can beat anyone he wants. Anyway, i tried DC mode with 3G in one GW, it was really hard because, the delay time is much shorter, i don't know how long and it gets disconnected all the time.
In GW, i think for a full guild, it is better to have everybody at the same might level/strength then having the top 5 super high and the rest low and weak, but this can't be done lol.
Life is short, so sweep.