a 200 muni easily dodged, small AOE, plane off map that directly hits should do some damage. Granted, There's a low margin of error with a engine critted tiger, but it still is possible to survive if you can determine where the plane is coming from in time. Even rammed, on the map border, a rammed Tiger can still recover and move fast enough to avoid most if not all of the bombs. IF you lined up a near full health tiger to get all bombs to directly hit it, or your opponent made it impossible for you to do so, you probably just got out played.
I think he got outplayed, that maneuver sounds like it was well executed.
Doing the same thing with the stuka and target weakpoint isn't really necessary, since the stuka will track the target. Really the two shouldn't be compared, the better comparison would be the stuka dive bomb plus a target weakpoint for the wehr side. Last I checked that's a solid 500 damage, always penetrates, plus you can get off at least 2 shots from the pak for an addition 320hp. That's enough to destroy almost any allied armor. I'm not sure about IS2HP and Churchill HP, they might need a few more licks from the pak.