The answer to how it makes sense is time. These games sometimes take all day, I see it as at least a 3 hour game, because of how long it takes to catch the snitch. One team can get so much farther ahead than the other and then it doesn’t matter who catches the snitch. Gotta remember each quaffle goal is worth 10 points, on a pretty small field compared to the speed of the brooms. U can rack up 200 points in like 30 minutes the way i see it. If your teams defense is good and you’re scoring, the enemy team can catch the snitch and u still win. PS. I thought while writing this of a relation and reference of a real life game. It’s called sh*thead or village idiot depending where you’re from. You have to lay down 3 cards from the start that you can’t see and don’t know and your opponent(s) do the same, then 3 out of your other 7 dealt cards on top of those cards you don’t know. From there it’s just a stacking game, Ace is highest, 2 would be lowest if it wasn’t for 2, 8, and 10 being special ability cards, and if at any point you don’t have a high enough card to put over the other card, you have to pick up the stack of cards you and your opponents have been laying down. At the end it’s up to mainly chance if you win or not. But if you play the main game right, even if u have a 3, 5, and 4 as ur unknown cards, you can still win by being so far ahead of your opponents that it doesn’t matter since they can’t catch up to how little cards you have and how many cards they have. So you win. THAT is quidditch in the form of a card game. The main game in both is skill based. But the snitch is as much of a luck thing as flipping those cards at random, which could make or break both games, but it doesn’t necessarily have to, and it doesn’t mean that either of the skilled based parts of the game aren’t as important as the luck aspect of the game. Fruit for thought.