And damn if it doesn't make stepping into that chamber even more of a victory.
IKR? I have thoughts on this, which I shall have to sort through & order properly. But OMFG everything makes more sense, even his rant. (He thinks he made it. He thinks he avoided his death without killing anyone (he passed the test! He didn't turn into the Master!) and then the universe says: 'Gotcha! You're dying anyway, it wasn't the Master after all! Ha!' No wonder he loses it...

(Why the hell would you cut those lines?)
I DON'T KNOW IT MAKES NO SENSE! *cries*