I see....yes. because we were able to mutate the loop, through the use of murtaugh's big green portal and put ourselves into the knot. so therefore, in sub8, we are at the exit point, we just need to find the right point... or we might end up in the loop again. (oh noes; all entry points failed, try 291, got a good feeling about this one (kinda makes you wonder, doesn't it?) )
And just to add, all the quotes ENIH quoted actually help you.
1)
We knew we had to follow Mur/Liz and go to Layer 5, but perhaps, as Gemini/you (depending on who's reading this) explained and I quoted above, Mur's big portal at the end of Sub7 threw us into the Knot.you were going to layer 5.
on the way - you fell into the portal within the portal that changed your direction and threw you into the dimensional knot that you had to untie in order to move forward.
2)
The Loop and the Knot being parallel to each other is exactly your Theory, no issues there.-See, this knot is just like the loop. Well, maybe not exactly, but it serves the same purpose.