Nothing warped about it, it's historically demonstrable. Emotional pleas are very effective at dulling an otherwise abrasive proposal. Think of how much complacency U.S. citizens yielded any time terrorism invoked.

If someone said they had software that analyzed these same sites but provided no reason or impetus, a lot more eyebrows would be raised. When you say it's to protect children, there's an (expected) emotional response that makes this sort of thing easier to digest.