Totally agree - They should have been given a warning, and then if they continued, straight DQ.
I don't care if it was "strategy"... thousands of people payed good money to see a competitive match, and they didn't get that at all.
Thousands of people pay good money to see the weightlifting events where the top athletes put down some crazy weights for their entry effort, making everyone else try their top weights from the outset and getting a vast number of athletes failing at the snatch, losing any chance of a medal.
Then the top athletes typically lower their entry weight after most people have used up most of their efforts. That happened yesterday as well. no one is complaining.
The athletes are competing to win the top spot, not necessarily for pleasing the crowds.
Would you ask for your money back at football if a team played defensively for a draw so as to stay in the league or to progress at the next round of a championship or something?