block, then a block?

[lrpalmer3]

Case:

A1 drives to the basket and releases one of those new school tear-drop high-arching layups when B1 comes from nowhere and blocks it into the backcourt. A1 has landed when B1 crashes down into him, but not violently. In fact, only you and A1's coach even see the contact because everyone else is gazing at the ball which is long gone.

A lot of refs no-call this play (including me) because the block was so clean. Some of you refs out there that also no-call it, what do you tell the coach of A1?