Several years ago my wife and I took a wreck workshop for the purpose of getting some exposure to line running. What we took away from the class, after doing a three-person blind exit drill, was that we had no business what-so-ever going inside a (real) wreck (and I still feel that way).
yeah.... some people don't fully appreciate how complex wrecks can be.
I agree that, IF DONE CORRECTLY, the PADI wreck course can provide the "average recreational diver" with some decent tools for appreciating wrecks -- and I hope that includes the appreciation of when to just observe from the outside.
I'm not sure why you're specifying PADI in this....
ANY wreck course from ANY agency should include a chapter on how to evaluate the condition of a wreck and how to approach diving it.
R..