Intentional - but then a flagrant or a technical?

[TXMATTHEW05]

Big play-off game tonight. Here's the situation:

Team B clobbers A1 on a layup. It was obvious he wasn't going for the ball, but for the person. The referee just calls it a personal foul - but then the foulee gets up, starts throwing around his arms, screaming, and it looks like he is trying to get into the fouler's face. What do you do?

I would have called an intentional foul on B1, then probably a flagrant technical on A1 - or maybe a technical, either one. But the fact is, the referee's let it slide. The game was vicious from then on. It somewhat "set the mood," if you will. Your opinion?