Was this handled correctly?

[Adam]

1. Flagrant personal on the initial foul, two shots for BV.

2. If the coaches didn't participate, they don't get fouls, IMO. I give them leeway. But if you give them techs for leaving the bench, they need to be flagrant and the coaches need to be ejected. In this case, you'll have two free throws for each coach that left the bench. Two for BV and four for Rio. But the two BV FTs are cancelld by two of Rio's. So, two for Rio and none for BV here.

3. Each player that comes off the bench gets a flagrant T. Since none of them participated, you only shoot two free throws for the team that had the fewest players come off the bench. Each head coach gets 1 indirect (not relevant if they're ejected, too.) Rio gets two more FTs here.

4. Final tally, assuming coaches didn't participate:
BV gets 2 FTs. Rio gets 4 FTs and the ball at the division line.
Head coach from each team gets one indirect T.

5. Final tally assuming coaches did participate:
BV gets 2 FTs, Rio gets 6 FTs. Every coach that came out gets a direct, if they were assistants, the coach gets an indirect for each. In the case of the BV coach, if both coaches that participated were assistants, then the HC would get 3 indirects and also be ejected. Rio still gets the ball.

But it seems to be common for refs to mess up the free throws on these situations.