The game engine must reduce the troll/fixed results.
Anyway we have (or must have) some opponents good teams for an “open” match and result.
Why to have this random effect vs abandoned teams ?
The presence of the manager must be rewarded. Maybe with a bigger effect of the training bonus and orders.
Many times we observe that those has no effect in game play (not against good teams and managers who are present in the game and maybe take counter actions, but teams with no manager and probably 0% training bonus).