My tinfoil hat theory about Rocket League is that it silently cranks up the matchmaking difficulty whenever you're close to popping one of these "win 10 matches for a free level up" quests because it knows you're going to be trying to finish it off. I swear that whenever there's one of them in an event, the first six or seven matches go by easily and then the last few are like having a dentist's drill jammed under your fingernails. I've come to dread them even more than "get assists", "do thing and win", and "win 3 in a row" quests.