Yes, they frequently called for back points when no takedown had been awarded. And they called a takedown when it was a reversal, which you should know because you are watching the match and you know where the wrestlers began the period. And, with the new college rules, when the official holds up two fingers it can't be a takedown anymore.
I also noticed that the scoreboard operators were having problems, but this is not that unusual; if you're going to announce you have to watch the official and see what he is signaling. Especially when you have two sets of eyes in the booth.
As I said in the post above, none of us are perfect, we all make mistakes. But those two (students? interns? communications majors?) aren't qualified to broadcast a wrestling match at this level.