1.9 Sec left in Playoff game TO Granted with none left leads to Coach Ejection (Video

[Nevadaref]

I was going to list that the penalty for 10-6-5 is a direct T to the head coach, but decided that wasn't necessary given that the crew handled everything else so well. I figured that they would know how to penalize this action had they elected to go that route.

Curiously, in this specific situation, the head coach had already been ejected. We could therefore ask to whom the technical foul should be correctly assessed.
Logic would tell us whichever asst coach had assumed the lead of the team, but nothing in the rules dictates this. Have to invoke 2-3.