I only know (really well)one libertarian Rand supporter, and he has now put his support behind Cruz. He is a VERY well informed guy, though. I know a sample of one does not make a trend, so there may be some truth in what you say.
I am referring to the Libertarian leaning Neo-cons ( self-identying), like Kevin Williamson, who came right out and stated that he agreed more with Rand Paul than any of the Conservative Republicans..
I am talking about the Libertarian leaning Republicans that used flood all the web site with pro- Rand Paul messages and anti- Cruz , anti, octal conservative messages. Heck, even News Max had gone all Rand Paul, all the time.
The WSJ hid their anti-Consrvative bias a little better, but since Rand Paul imploded, the anti-Conservative, anti-evangelical venom has exploded like an IED. Writers that I used to admire, I no longer read. I have blocked sites from my web page.
I had a hard time figuring it out at first, but I rembered the venom against Ted Cruz that was spewed all over Free Republic when he was running for the Senate and then I realized what was happening. Divide and conquer.