They were all smart people. They knew that Officer Qiao's display in front of everyone wasn't meant to force Lord Shao into submission.
From this, it was clear that his character wasn't exemplary.
Besides, if he were truly innocent, he wouldn't need to be so humble in front of Lord Shao as his father-in-law.
Everyone thought that while Lord Shao might be a bit unreasonable, Officer Qiao and his wife must have done something terrible to warrant such treatment.
If it had been ordinary people present today, they might not have thought so deeply. They would have seen how humble Officer Qiao was as a father-in-law, how deferential he was to his son-in-law, and how pitiful he looked. They would have pitied him and felt it was unfair, potentially using public opinion to pressure Shao Yunduan.
However, everyone here was smart and driven by their own interests. Officer Qiao's plan to get what he wanted was doomed to fail.