They've gotten by with so little before (tools specifically for youth), it's hard to argue these videos aren't a step up.
The truth is this org doesn't give a good damn about kids. Now they are showing an interest suddenly but purely for self serving reasons. The leadership sees them as future members (donars).
The sudden interest in children (I thought JW's werent supposed to have them) is actually another sign of their desperation as oldskool pointed out in other threads.
Their biggest problem by far is apostasy on the internet. Apostasy has led to stalled growth. So they are resorting to ramping up customer retention methods and winning back old customers (inactive).