The vaccine does not stop you from shedding the virus (or even getting sick in some cases). Also stops the unvaccinated from protesting their masks before real herd immunity has set in.
Just wear a mask.
But yeah, their stance is either a gross understanding on the purpose of masks and how they work or they are being hypocrites when it comes to what they previously preached. Either way it's business as usual for Fox News and not worth the time.