I think we should make more clear whether we are comparing religions relative to one another or in an absolute.
If we are going "relative", then certainly, it is somewhat inaccurate to compare ISIS and other Christians like the JWs and bag them all under extremism.
If we are going "absolute", then we have already made the case here before that even if you don't die because of the JW doctrines, you still ran the chance of having a very traumatizing experience. Some would argue that it would be better to die
With that said, and if we concentrate on the JWs alone, people do die because of the doctrines. May be they don't kill innocent bystanders but people still die because of religious beliefs. Saying that JWs are not extreem just because ISIS is more violent, is simply putting a bar on something that should not exist whatsoever. Very much like Dr Applewhite tried to make the case that the JWs were not as bad as the Catholics when it came to child abuse. Not a good excuse. Judge McLean made it very clear. It is not a competition.