Because they are getting out in front of it. It’s becoming undeniable so they are framing it before it gets out of control. The left has been very very good at this for several decades, framing the argument.

It’s a lot easier to shrug it off if they’ve already framed the argument by establishing that this stuff is not a big deal, extremely rare, “mild” etc

When we confront them with facts their followers can just say “yeah, I already knew that, but…”

The same facts they denied last week are now “yeah, we knew that already, you conspiracy theorist, BUT….”

This is how they incrementally rape the shit out of the public on a number of issues. They did the same thing with homosexual issues. Frame, adjust, frame again. Like an inchworm it moves, Bunchs up again, moves again, Bunchs up again, moves again. This is how they incrementally do these things. This is the only way they were actually able to get the Covid narrative to work in the first place.