I think that would be helpful to a lot of us.
I think it would lead to a lot of questions being asked that the LDS leadership doesn't want to answer. If everyone knew what the temple ordinances were, there would not be the same intensity of members to live the worthy lives in order to enter those temples. The secrecy is part of the attraction. I'm sure you ex-mormons remember what it was like, that curiosity of "just what is an endowment and why should I want it?"
To some, belonging to the exclusive club is worth the sacrifices required for membership.
Secrets make you feel special. This is often a ploy pedophiles use....
...we musn’t tell, it will be our little secret. Only the special ones know. If you tell, bad things might happen to you. Do you promise not to tell? Will you slit your own throat rather than talk about it? Goooood, now you can be initiated into the special ceremony.....