i experienced troll-matches too
in my case it was when i played a tournament ...
in 2h difference i had a 6:0 and a 0:3 result with excat the same team and bonus against the same opponent

imo it has something todo with the new training system, so there are players with extreme stats out there (1% def 300% off), who make the results very variable, because they lack consistency
i use such players, so i am not wondering too much about troll results

oAo