After further consideration, I am going to suggest that this staged.
Note that that ground is very dry, (except for the overflow of mud from driving into the hole). Yet, the area the tractor is sitting in is soup?
Note that the hole the tractor is in, appears to be the exact size and unnaturally rectangular shaped, like the tractor.
Note that there is open ground to the left, that is lower. If you were actually trying to get out, would you not attempt to open this area up and drain the soup?
The fact that the operator is not attempting to use the outriggers, and the front bucket, also suggests he is acting.