Simultaneous or false double foul

[Rob1968]

2-man crew:
A1 attempts a jumpshot from outside the key, left side, high. He is fouled on the shot by B1, called by T. While the ball is in the air, L, across the key, calls a foul on A2, for pushing B2. The shot is not successful.
One official says it's a simultaneous foul, and that the ball should be at the POI, A's ball, for a throw-in.
The partner says that it more fits a false double foul; A1 should shoot the two freethrows, with no rebounders along the key, and then it's B's ball for a throw-in, at the out-of-bounds spot nearest the foul on A2.
Your input, please.