They are as brazen as ever but your letter to the school spells it out very correctly. The school needs to know more about the groups they allow to set up tables. The JW's who are manning the table most likely do not have one single person with a degree beyond high school or business/trade school.
They really piss me off when they do these things.
In 1989 my daughter had to turn down a full scholarship because of being a JW and I encouraged her to do so for the main reason of how it would look to the congregation. Thankfully, we are both out and now at the age of 43 and having a great job, she has gone back to college to finish her degree that she started 11 years ago and will go on to get a masters. What a waste of intelligence the young ones in the borg have to throw away!