It would essentially kill off all hobbyist development. Indie gaming as we know it would not exist, the vast majority of all professional programmers would not exist (even those who aren't part of the gaming industry). People like me who learnt to program growing up so I could learn to make games. "Yeah, you need an enterprise fee for that, too bad kiddo".Yikes, just ...yikes. How on earth would ANYONE learn to code in this kind of environment? If you have to pay an enterprise fee to get that level of access to the hardware surely only people who already know how to code would be able to continue.
It's mindbogglingly idiotic to support such an idea.