I have worked at both TIR (although it was TIL when i worked there) and TF, it does not sound as though you dived the Elbow, this would be done as drift dive as typically there is current , which in turn attracts the schooling fish and palagics. Depending on strenth of current we would drop in at Leftys ledge or Gorgonion Bluff and drift down to the elbow and then off into the blue, when the dive is good it is really good.As far as the Syonara, it was an old supply boat of the lodge that was sunk back in the 80's.I am sure that there is very little structure left now as it was a wooden hull, however if you go west of the boat there are some fantastic coral heads and swim through arch, i have done many night dives there and once away from the wooden hull have had some enjoyable ones, although i find night dives very hit or miss.
I enjoyed your review and would just add that Craig and Karen have built a tremendous resort and put in a lot of hard work to get it to where it is, they have been a constant factor in TF since its conception, which cannot be said for many other places.
The fishermen did sound obnoxious though!