What if she did not see it or was not sure? Maybe attack the cheater instead of the player who caught the cheater?
Sure, because they all cheat (except very few like Vladi or Timo). But the ITTF started working on this, and the unwritten rules are changing as we speak. There is no point invoking them.
Yes, she suddenly decided to fight against cheating right at the moment when her opponent had the momentum and was posing a real threat to her chances of winning. Annette’s toss was at a 33 degree angle instead of 30 or less, so down with the cheater, while she herself often hides the ball with her head during service.
"what if she..." argument is really hard to believe. This isn’t a local tournament with local players, they all know exactly when a serve is illegal. It was simply a low move, and Annette’s reaction said it all, she was really upset (maybe was now aware that the unwritten rules are changing as we speak).
Apart from that, having TTR available on two tables in major competitions wouldn’t really make much of a difference and it would be quite expensive for smaller tournaments and leagues to afford, so they should look for more practical alternatives.