Yes some instructors may have contributed to this, thank GOD none that I know personally.
I can see in this thread and a few others those who choose to ignor safety (Accident Analysis) and the chance to perfect their skills and for what a few minutes of time so that they can get on with the dive. These divers really are not what I would consider proficient cave divers and have no place within the cave systems. A true cave diver, any true diver for that matter even when not in a cave system will continue to practise those skills to perfect their sport/ activity/past time. This system Peacock is not and should not be an example of where one system becomes the standard for all of them, it is at present however a representation of a conflict of training protocol and reality. A accident in waiting....
Divers are penetrating further than what the standards (as designed) are permitting. They begin to interpret those standards as it suits them. Yes a T at pothole It runs up to the opening so lets swim past it. Intro divers are not to do traverses, jumps gaps, T's or complex navigation, deco, they are limited to rule of 1/3's on single and 1/6 on dbles. Pothole in it's old line format was a traverse technically but it was also the end of the line for intro divers, it was a GAP. This new connection has caused intro divers to push further into the system placing themselves in violation of standards and at a greater risk. The complacency of what has began to develop because of this one system has carried over into other systems. Manatee with the line hidden behind some rocks just next to the warning sign has had many divers ignor the issue of running a primary reel, siting that they can clearly see the open water zone from the end of the gold line. Some Intro divers have been discovered to come in from Freidman's Sink and made the traverse to Catfish hole again siting that it is a single continued gold line travel from one hole to the next, passing under Sues Sink enroute, "Really" I say and somehow they forget that Freidman's Sink is a Syphon System. And they have done this with no exiting line preplaced at Catfish because they dive Ginnie and Peacock with no lines all the time. A little bit beyond the Intro to Cave level wouldn't you say?
Congrats to Ginnie for moving the gold line to the floor right at the Grim Reaper sign.
I hear the phrase An EXCEPTION TO THE RULE? this is BS, there are NO EXCEPTIONS. And Hey lets not talk about the deco obligation they incurred making the Manatee dive, their lack of breathing gas is not MY CONCERN (or is it?).
As Scubafool stated The instructor has no control over what their student does after certification, this is true. The instructor does have the responsibility of instilling limitations and attitudes of their students as well as a skill base.