One thing I've learned in all the years around aviation....
"Don't jump to conclusions"
This may have been a world-class screwup.
Or, the tow bar may have broken during pushback or something similar.
I've had that happen to me...nice smooth push and BAM! all of a sudden you are freewheeling across the ramp with no nose wheel steering (bypassed for push). If you slam on the brakes while going backwards, you sit the aircraft down on its tail.
So, you very gently brake and use differential braking to steer. You're going backward and can't see aft so you sort of guess what's behind you by seeing what's going past in front of you.
It keeps things interesting.
It's also better to be lucky than to be good.