I have to say from watching that;
1st Goal; not even a penalty,yellow for simulation
2nd Goal; Very very soft penalty, again looked like a dive
Sending off; The Cambridge player reaction causes that, 10/10 for dramatization
3rd Goal; Goalie fault
4th Goal; Goalie fault
5th Goal; the first normal goal scored!
I didn’t see the game except these highlights but the ref made some shocking decisions at key moments.