No. It probably only works for quests that are "You may also receive, at random:" while one of its rewards is listed as a 100% drop. This will make it possible to drop multiple quests rewards on the test server, but on normal you get only 1 everytime.
Retrieve void Auras is the only quest that fits these conditions afaik.
And it also doesn't guarantee 8 Void auras.
On test servers you get either 2, 7, 12 or 17 auras. (average of 8 for me)
While on normal it's 2, 5 or 10 (average of 6 for me)