Why didn't Madam Hooch stop Dobby's rogue Bludger?
I know in the movie Harry Potter and the Philosopher's Stone Madam Hooch was completely asleep at the wheel during the Gryffindor/Slytherin Quidditch match, letting Slytherin cheat themselves pretty, but I didn't think it was canon. I was surprised upon a re-read of Chamber of Secrets that Madam Hooch didn't seem to know there was a rogue bludger in play during the Gryffindor/Slytherin match. It couldn't have been more obvious! The Gryffindor team was clearly beside themselves; Slytherin was jeering and blatantly enjoying the show ... where was Madam Hooch? Quidditch Through the Ages says professional Quidditch referees are highly trained ... perhaps this only refers to the International Leagues?
How could Madam Hooch have let the match continue, or go to forfeit, when the equipment had clearly been tampered with?
An answer based in canon would be great.
‘If we stop now, we’ll have to forfeit the match!’ said Harry. ‘And we’re not losing to Slytherin just because of a mad Bludger! Come on, Oliver, tell them to leave me alone!’
‘This is all your fault,’ George said angrily to Wood. ‘ “Get the Snitch or die trying” – what a stupid thing to tell him!’
Madam Hooch had joined them.
‘Ready to resume play?’ she asked Wood.
Chamber of Secrets - page 128 - Bloomsbury - chapter 10, The Rogue Bludger