I’d say that’s just more msm fear. The vaccine looks to be effective, and at least capable of reducing severity even with the SA variant from all I’ve read.
the concern is theoretical and the media just blows it up.
"The media" reports it -- and you should be thankful that they do, or you'd have no input from which to form your own reasonable judgement.
Any "blow[ing] up" is generally done by readers or listeners incapable of critical thought.