RondegoI went back to watch this and I saw my spy kill at 42:52, and yeah, I can definitely see why you'd think that's an aimbot. I'd say that I was just able to track him, because I was, but I know I can't actually prove that, so I'll leave it for what it's worth.
I don't think it was just the tracking of the spy, I think it was the obscene amount of damage you did to drop the medic right there.
You hit the pyro for like 14, then 26... and then the medic came in and suddenly you hit him for 70, and then when he came back in you hit like 26 then 44. You weren't that close to him, and you were shooting through a gap.