Yeah umm that's because we didn't win because of a bad umpiring call. That assertion assumes England don't get enough in the next two balls. Your putting a defintive statement on it the call.
If it were the last ball of the game you'd be right but it wasn't.
Ok so next ball the batsman was caught behind, just as valid an argument and by your own admission you got more runs than you should have in a tied game so yes it was determined by an umpiring call because it was that incorrect call that made it a tie.
You can not argue hypotheticals only on the facts you have in front of you, England didn't score more runs than NZ and were awarded more than they should have got.