It is believed Ptig deliberately did this on a Friday night when most sane govt. workers get blind drunk. Now on Saterday they are hung over; called to work unexpectedly, tired and miserable. With Wagner at the last bridge before entering the Moscow area, they are in poor shape to plan and do anything effective to stop them.
From what I hear, he is going broke and had to move now or never.
The most important thing for Ukraine and Ukrainins right now is to expel all the russians for their lands!
May it be so!