The MA is an open "combat zone", right? So lets be clear, if it's RED is fair game, right? I'm not asking for opinions, I'm provoking in-depth critical thinking about facts, regarding the standing of opposing forces in the MA, based on rules/regs/guidance etc from HTC. (I'm not including that turd who actively tries to further destroy a spiraling aircraft you knocked the tail off already... that's lame, although fair I suppose)
I heard a conversation/lecture the other day (MA) about how certain folks didn't need or want help when engaged... they even stated "that's (getting unrequested "help") is why we went to the DA". <<<<they really said that having come back from the DA.
Maybe I misread the whole thing. But, we've established they don't want any help when engaged in a fight. We've also established they know for certain there's a DA, and how to use it. But they want to run around the DA having private fights?
Good luck. 
There are many players who like to engage in a dogfight with someone unknown, in randomly determined matchups (wrt Plane type, alt, skill level, etc) and see how it turns out. As one of those players, I respect that their fun is finishing a 1v1, and so I always ask if a player wants help. many say "no", some say "Yeh, get down here and kill him for me"
It's polite to ask. Part of having a fun game to play is cooperating with other players to make the game fun for everyone. Maybe, and expecially your team mates.
Not asking your team mate before you ruin his fun is a choice you can make. It says you don't respect him enough care what he wants. You have that right.
But if you are coming on here to make an argument that you are justified in your rudeness, it's falling on deaf ears my friend.
