Listen to the video in the article she linked about 1.20 in.
After that came out, Pima County Sheriff office said this:
Followed by this:
So I believe they are NOT looking specifically at Jan 11. But would be interesting to know why someone else sent that message.
In this interview he says that they collected evidence on first night and as FBI returns to home they are analyzing that evidence not collecting more.

FULL INTERVIEW: One-on-one with Pima Co. Sheriff Chris Nanos on Day 13 of Nancy Guthrie search
-Guthrie family NOT cleared
-Controversy over tension between FBI & PCSD?
-FBI NOT collecting more evidence from Nancy's house despite being there
-Where DNA is being tested - unclear if rapid DNA testing in Tucson is still broken
-Why no media briefings after significant developments this week?
-Are we closer to an arrest or charges?
-Is this a rescue or a recovery?