Hi arianuow,
My application timeline is almost identical to yours.
I also applied in Victoria BC on September 16, 2014, passed the test on May 11, 2015 and heard nothing afterwards.
I didn't receive RQ nor FP request, during the interview I was told by an officer that my case is quite straightforward (single applicant, school/work in Canada all the time) and should expect the oath in July, but that never happened.
About the other applicant you mentioned, when did s/he submit the application in the first place, maybe the queue is based on application receive date not test date.
The next CIC visit to the island should be around mid-October, and they normally send out oath letter two weeks prior, so maybe we just need to be a little bit more patient.
Update 1: I just checked ecas and my status gets changed to decision made, was in process a few days ago.