Nostalrius Begins - Quality wow vanilla realm (1.12)

Hi ppl.
I did 80 runs to brd arena. got orc spawned about 20 times. he was empty all the time.
But I saw ppl with this chest about 4 or 5 ppl.
Whats a drop rate of this shit?
I am actually asked a ppl they said Garosh dropped it for them from 2nd or 3rd run.
Did admins deleted this item from drop or what?

drop rate like <1%.

It still drops we got it the day before yesterday.

i can confirm, its dropping on arena, saw it more than a month ago