IMO, strong leanings that the husband was involved in her disappearance. Up to family members to push investigators to, well, investigate. Otherwise, other new cases will push BT’s aside. Yes, additional media coverage will help your cause, but making daily calls to investigators for updates will keep BT’s case in the front of their minds. My guess is that RT isn’t doing this as he probably doesn’t have much interest in seeing this matter resolved, so BT’s other family members need to maintain contact with the investigators.
Earlier you had asked if there was any info about search results (home, camper, etc). As far as I know, LEOs haven’t publicly released any info, none, since the SARs ended their work. While they most likely wouldn’t share much of this info with family, they may be able to share whether or not the searches were done, and if not then whether the searches will be conducted.
From what you’ve shared with the forum re: RT’s comments and actions post-disappearance, seems likely he know more than he has let on and that his initial story may have been fabricated. I hope you’ve shared this with the investigators.