NEM is still in experimental phase. Do you really want thousands, even millions, of people flocking to a platform that is still experimental?

It doesn't sound like a good idea when we even haven't left beta stage, this tech will manage people's literal finances which affect their daily lives. Developers have to make sure it's extra secure and stable.

It will be ready when it will be ready and when that happens more exchanges/people/companies will pick up NEM.