Competition is always good for the consumer.
The more trading platforms that exist for Bitcoin, the greater options we have to access the market. And that competition leads to lower prices or greater services. We always win!
The SEC isn't reluctant to give crypto its blessing because there's "too many" trading platforms. They don't give it their blessing because (A) it can be controlled by a central authority, therefore the SEC has a harder time policing regulation, (B) it hasn't been proven successful by mainstream banking players or markets, and (C) it's size is too small for them to devote the resources to regulating it.
If Bitcoin has greater growth the SEC will be forced to enforce an opinion.
What is it that you're really concerned about?