I don't have a problem with just going at the end of overtime. The end of regulation is where a TO should've been taken and an actual set play.
You got it flipped around. At the end of regulation, that was the time to just let them play which Fran did, we were tied and could do no worse than going to OT. Wisky is a good defensive team, if you take a timeout you may not even get the ball in. We had the ball in the hands of the guy we wanted it in and got a great shot. Totally the right coaching call, IMO.
Now in OT, that was a different matter. Down by 3 you need a 3 we should have got a TO there to set up and make sure we got the best look we could. I have no problem with letting them play too, but as soon as Fran saw Cartwright cross half-court with no urgency, he should have called TO right there, but then again you have to get the ball inbounds against a good defensive team.