Go gotta ask yourself, why did this come out just now?
Many possible reasons.
One is that power in Ukraine has shifted more to the military. Total war does that. The old boys network is no longer important, relatively speaking, in a society and economy on a war footing. And the military may be impatient with the old lot. They were likely getting in the way.
Another is that foreign players (largely military, or the Poles) are in a better position to call the shots. And they may well be impatient with the old lot too.
And then it may be that now that things have died down a bit, its no longer crisis after crisis, there is opportunity for housecleaning. Until the next crisis.