This seems right.
At a minimum, I think they are being careful and thoughtful. No knee-jerk.
Fres, your article just posted reveals the motive behind the Van Dams manufacturing the story about Danielle's disappearance.
They were swinging, drunk, high and unavailable as responsible parents that evening. If an accident happened, where Danielle met her fate, then they would have been terrified to call the LE. What would LE think of them? Would they lock them up? Would they take the boys away? They were just plain afraid of the consequences...even tho they tried to cover up what happened that evening in 6 interviews and then went on to brazenly state "we have no regrets", which was the ultimate NOT GUILTY message of this whole sorted mess. The public bought it, only because they had a suspect..that is, Westerfield.
But suppose there wasn't a Westerfield? How would the public have reacted to the contributory negligence and culpability of the Van Dams?
Dusek would be holding the rope in his hands for them, instead.
sw