Not to be an absolute curmudgeon but since this IS the "DIR Practitioners Zone" forum, I wonder how "appropriate" it is for these dives to be discussed here since these dives are done outside of the diver's training per the rules of each.
These dives were pure cave exploration dives -- going where no man (or woman) had gone before. rjack's GUE Cave 2 cert, which specifically precludes doing exploration diving (at least that's my understanding), and bdub's TDI Full Cave (which I also have and I believe from the same instructor) also does not "encourage" exploration cave diving.
I did a quick look at GUE standards and course outlines and I can't see anywhere that precludes exploration for Cave 2 certified divers.