I've followed many cases with no word from LE. Typically, though, they were murder cases where the remains have been located. Especially when the FBI are involved, they prefer a tight lid on a case, versus local Sheriff's who like to connect with the voters.
The most recent missing person case that I recall getting no media/social media/LE statements (outside WS), was a tourist who went missing in the desert areas in California. No word or updates for months. Family were very suspicious and accusatory towards someone, IMO that was probably why LE didn't give them updates.
It turned out to be an accident (not saying it is in this case), but the similar features I see with this case is:
- The women went missing outside their home community
-On the ground searching is too wasteful of time. It's planting season, locals will know their own fields/out buildings.
-People close to the victims are not imagining this could have been an accident, a mistake, some mental health crisis...IMO, they strongly believe they know exactly what happened, and so public rallies/vigils are inappropriate. Their only hope is LE, and they'll do whatever LE asks, to support them.
JMO