IDF officers need to get a sense of humor?

Some of you might recall this video of IDF soldiers giving Haman, the villain in the Purim story, a rather loud greeting.

It seems that the soldiers were in an officers' course, and some of their commanding officers were not amused. The soldiers have been sentenced to up to 31 days in the brig.

Apparently, the video shows, the soldiers decided to take the
custom to the next level – using