I don't know that I agree with that assessment. If the donks filibuster I would expect and demand that frist do the adult thing and force the vote. Flush the moderates into the open. Take care of the qustion once and for all. It would be the last thing any of them expect. And as I mentioned, the language frist uses can take care of the judicial stuff and the Moderates "deal" in one blow.
There is no downside to this, except to p-off the MSM and donks, which is gonna happen anyway...
What good is flushing out the moderates if you lose the vote? It would not be a pure "donk" filibuster. It would be a bipartisan one. That would provide cover for the "moderates" with their targeted audience.