This thread is way off topic. The article isn't about evangelizing, it's about evangelizing minors.
Is it really an imposition on Christians to wait till the prospects are of an age to understand the message, and either understand or reject it? Why would you want to convert a 15 year old under the guise of, the example in the article, telling him Baptism is a Jewish ritual. I don't see this as a controversy.
15 years is well over the age of accountability. It's not like they were targeting grade school kids.
Now I dissagree with telling him Baptism is a Jewish ritual. But I doubt that's the whole truth. No true Christian believes he's accomplished anything just by getting him to be baptised. It's the acceptance of Jesus that is key. They gave him the Christian scriptures two months before they talked to him about Baptism. I suspect they presented Christianity as a fulfillment of Judaism, which I believe it is. But it's not like this kid didn't know he was talking to Christians. If they did try to "trick" him into baptism, that is both very wrong and stupid.