So.....I would love to help with something like this. There are a couple reasons this video works.
1) Its concise. Its built for someone who doesn't know the jargon and much about Mormons, to understand the basics.
2) Its accurate. It isn't full of subjective opinion. Factual for the most part, although as Island man mentioned, its probably being called lies from members because it leaves out what they feel would be key details.
So A JW video like this to be effective would probably need to focus more ont he general message, and doctrine. Policy related to UN hypocricy, or even the molestation cases, in my opinion would muddy the water.
the JW videos points could be...
...only JW's (.01% of the world), will live in paradise. Paradise? Yes where everyone lives forever after 144K people go to heaven to rule them. Like a new Garden on Eden, except after 100 years Satan gets to try to trick people again for one last test.
Blood transfusions (large parts of blood are refused, while all the other parts are ok. Basically ham, cheese, lettuce and mayo are cool.....but the sandwich is forbidden). We even would allow ourselves or our children to die if this was one of the only ways to save them.
Holidays. If you celebrate christmas you are disfellowshipped.
Disfellowshipped? A three man private tribunal decides if you are guilty and/or repentant regarding a variety of "sins", and if they find you guilty you are communally shunned by everyone including your family. Unless you are a minor and live at home.
These items playfully rendered would be ACCURATE, and concise.....probably filling about 4 minutes.
I say use the same method. JW's are great people, but what if they came to your door and told you what they really believed straight away.