I openly admit that this was an oversimplification but nothing I stated was false even if it was out of context, however the stand your ground laws were a big part of the Zimmerman case. As stated from this Washington Post article --
As a legal matter, Zimmermanās attorney did not raise a āstand your groundā defense at the trial. But after the trial a juror acknowledged that
jurors had discussed the self-defense law before finding Zimmerman not guilty. The law also changed the standard instructions to jurors in homicide cases, so that the judge said that Zimmerman had no duty to retreat and could stand his ground if he felt threatened. (The law may have also played a role in the initial failure of the local police to prosecute Zimmerman.)
This was my main point that I was trying to get across and its something that I personally believe should be addressed more if a school is claiming to teach a self-defense program.