My experience with JW critics were people who thought JWs don't believe in Jesus or were upset at JWs about the Trinity or something like that. Some JWs thrive on those arguments. A lot of JWs never really face any serious challenges and are unduly confident.
I can see that. I guess it hinges on how we define, "apologist." Most Christians in denominations that actively evangelize are expected to defend their faith.
To me, apologetics is more formal than that. It would include authoring papers, books, articles, putting up websites, formal debate before a real audience, going onto discussion forums and engaging high-profile 'Apostates', etc. It's impossible for a JW to do this without coming up against a knowledgable critic.
The problem as I see it, is that JW aplogists eventually find themselves on a knife-edge with academic honesty on their right hand and blind loyalty to their human leaders on their left and they must make a conscious choice.