Combined offline and online tournaments.

You are unduly considering the bug with overpowered AI heroes as a fatal flaw. It can always be addressed with rules. And it can only be applied in a small number of tournaments. It's a shame that you think I'm only taking note of this tactic.
It's a shame that you are treating a great game this way. And I don't play TE; it's more like a mod, similar to WoG for Heroes III.