Continuous Motion

[slow whistle]

Fri night BV hotly contested league game.... A1 goes from top of the key drives the right side of the lane and goes into a jump stop. As he is in the air going into his jump stop B1 puts two hands in his back and pushes. B1 then goes up off of two feet and scores. From C I come in and get the foul and I score the goal as I judged that this was part of A1's normal shooting motion - in fact A1 (team A's star player) has completed this same motion 3 or 4 times already in the game with the jump stop and then up with the shot. Of course this is right in front of team B HC and he is, let's say "not happy" that I scored the goal...I reported the foul and then explained to him that I judged the jump stop to be part of A1's shooting motion...part of what he was mad about I believe is that A1 had already done this 3 or 4 times to his team, he was even yelling "you're giving that to HIM!?!?!" I realize this may be a tough call without seeing it, but what is the consensus out there? Jump stop part of continuous motion? Appears to be nothing that definitively rules it out from the rule & case plays that I have read, but I appreciate the feedback..