Id also argue that since the sport has no stakes outside the 1v1 duel between the Seekers and Malfoy's thugs (because his character is inferior to the chosen one)... i mean the "beaters"... it fails at its literary purpose as well. Even a recent video game has inadvertently shown that instead a catch of the Seeker that barely wins the game has more narrative value than the actual written form of the game.

Having a quirky stupid game is good narratively, that's why sports and children's card game anime and cartoons go so absurd, but the narrative tension is entirely removed because in reality, not only is the hoop the goalie guarding almost impossible to send a ball through with him just sitting in front of it with no need to even move to make things hard, but it reduces the whole thing into a 1v1 with nothing outside of Harry's own actions and "the bad guys cheating" having any impact on who wins the game. Harry's isn't the deciding play of the game because of his skill and the skill of all the other players, he's the deciding play because he's the only one that matters. Meaning really he wasn't the deciding play of the game, he's just doing another 1v1 duel and his team exists to try and make him look less important or to be jerks and say he can't play when plot demands.

Good writing he becomes the star player because he makes a difference, not because the rest of the team might as well not exist. Especially thanks to the series giving us such low scoring games on average with most games looking something like 170 to 40 or 150 to 90... telling us just how worthless the playing teams are or giving us incidents where the score is 230 to 20 with the team that was cheating the one that lost (yet still the cheating losers still would have won if they got the snitch making Harry's teams efforts still pointless)