That is an absurd statement. By that measure so is the cleric epic. I have no idea why this was changed to 3 day spawn. It seems to be based off one post on Usenet while we have a very well written guide to the contrary. Not to mention if you take the time to read the sources nowhere is the staff talked about as being hard to get. QM being the rarest due to less knowledge back in.
@OP See what you can dig up on
http://www.magecompendium.com if archive caught enough of it