The person(s) who put her there, most likely have some familiarity with the home. Related to owner, lived there at some point, friends with someone who lived there at some point, knew the house was empty, and felt comfortable about being their long enough to bury her, without attracting attention. Surely at some point in the time she was missing, there was a vehicle parked there. Hopefully someone saw it.
The friend/coworker, is mute to me. We don't know how well they knew each other. We don't know if she left the bar out of site of the friend/coworker. We don't know if there were persons as described by friend or co worker, or if they were described to her by PH, then relayed to family, or if there were even strangers at all per LE, all we know is that they could not find anyone on video matching the description. We don't know if there were conversation between her and the /coworker or if the co worker thought maybe she was grown and therefore could do what she wished and maybe it was none of their business. That person may not have gotten a good description because he/she didn't care what PH was doing. The leaving with strangers could have transpired in the parking lot and coworker only knows what she was told. The text does not seem all that far fetched for someone who feels like they are in a bad position. I have now idea what i would text if in that position, or pressed for time.