There are all kinds of good reasons for some legislation like this.
For one thing, as someone that works in the emergency/rescue field we have had extreme difficulty getting car companies to give us the most necessary information about air bags, tensioning safety belts, side impact bars and the like. This is information that helps the fire departments extricate YOU and YOUR FAMLIY from a smashed car and helps us be safer. Profit and concern for proprietary design trumps those worthy concerns!
When I want to change the diff. gear
oil or cabin filter in my newer car I would like the manufacturer to be required to tell me the type and grade of gear
oil and so forth.
This would only help people that use this forum... think if hot rodders never got any factory information and spec... would we be using factory fuel injection and motors right out of new cars for some of our projects? I just watched a show where Troy Ladd of Hollywood Hot Rods was using the brand new 5.0 Ford motor for a street rod. Without a little factory insight it would never come together. This motor hasn't even been sold to the public yet.
When you freak out about GOVERNMENT CONTROL in favor of unregulated industrial giants all you do is trade one kind of control for another. A world in which CEO's of all the major corporations got everything they ever wanted would be a terrible society.