I have firsthand knowledge as to why LE does things they do. We will all responding to you saying they would NEVER call the dad, when in fact they did. That's all.
Sorry, but you do not have first hand knowledge, unless you yourself are SPD LE directly involved in the case, (not your uncle, or 3rd cousin's "advice" either).
With that said, I'm former LE, and I don't even have first hand knowledge, as I'm not with SPD, however I do well know of what contact processes are deemed "safe" and which are not, in the apprehension of a subject.
I provided the overwhelmingly used standard op procedure in "rules of contact", but even some LE dept's do not follow these rules for 2 reasons, one good and one bad.
1. sloppy, careless contact that can jeopardize the case or victim (bad)
2. SPD may have info WE don't have, or judged it better to call, due to unique case risk to the girl. (good/acceptable)
In any case, we do not know for 100% certainty if and when they called the father. You can't believe what's reported in newspapers if you want to be completely factual and credible.