I open this new thread because ubers thread is filled with "proove your pint" "your point is invalid" discussion, walls of text, quotes of walls of text and not productive + its not about bomber, its about its counter.
T1 mobile AA is currently not effective as a counter to air. Its only punishing when you play stupid and leave your air exposed to it for a rather long time. Watch the replay i added. It shows 25 Interceptors flying over 25 T1 mobile aa. This should be a punishing move but its not. I loose only 3 Interceptors in the process. Punishment from a counter looks slightly different (see t2 aa that follows up).
It also takes 12+ hits to kill a bomber. Even with a scout a single aa utilizing its full range cant get that many hits in the time the bomber passes by, guaranteeing an escape or a second run.
Also this would be a more useable counter against t2 air with its cheap and strong gunships.
I don't want you to loose all your stuff when you fly over aa, but it should be more noticeable and punishing. Air is still mobile and agile enough to avoid any aa. get scouts, kill stuff and do everything else that air usually does.