There's no mention of that here because it can't happen under Federal law. The insurance industry is regulated at the state level, and there is a solid constitutional basis (including a key U.S. Supreme Court decision) for that.
There is nothing that prevents states from organizing insurance pools collectively and recognize regulations across state lines, but the Federal government simply can't mandate it.
That’s why I used the word “unleashing”.
It’s my understanding that insurance companies are prohibited from offering insurance regionally or nationally, thus limiting competition. So, I was just commenting that this shackling be removed. Not at all suggesting it should be mandated, just that it is an option.