How to get to Kelthuzad without killing ANY bosses (not even Sapphiron).

I found way to get to Kelthuzad in matter of seconds as title says. To get trough first wall i showed there u must use Elixir of Giant Growth. Later just jump from the roof and u'll land on snow as 3rd pic says. Last 2 pic's say everything for themselves.

And there is proof that you can actually pull him (so u can also kill him), unlike ragnaros where u can get to him without killing bosses, but cant pull.