> And no one batted an eye.

Citation needed! Pretty sure you do not have an accurate bead on how "everyone" reacted.

My guess? When people read their trusted news source, and it disagrees with a previous assertion that they've bought into? "Ugh stupid opponents are infiltrating our news. No way I'm buying into this government bullshit trying to force vaccines on us!"

(But I hope that what you say is right - that conservative news is finally encouraging vaccines... and maybe in a few weeks/months their audience will subconsciously flip to "oh yeah vaccines are good. I've always been planning to get them but I needed some assurance they are safe, which we're finally getting just now.")