The Black Hole didn't pop because you were preferred it pops up when you get close to lvl50 regardless/ It started showing up for me around lvl 47 or 48 I think and I asked about it as well.
As for Section X Herioc I had the easiest time going thru it with 2 Sage healers and a Commando healer. 3 cc's and then killing the un cc'ed one and then the others one at a time. Easiest time I have ever had in that herioc.
You can also go to Ilum and get to the Black Hole from there as well via the shuttle.
Feel Free To Disagree.....Most People Do Anyways