Earlier quoted context omitted.
I like the idea of getting rid of in/out of network. Both recent administrations have taken steps in this direction.
Networks are a double edged sword. They're a pain to use (especially for things where network facilities have non-network providers or network providers steer you towards non-network accessory care like labs and what not), but network agreements are also a way that insurers control costs. Forcing insurers to cover every provider means insurers can't exclude overpriced providers.
E.g. when my wife had surgery, the hospital tried to charge $20k for the surgery room and $20k for the recovery room. Our insurance pointed out that by their agreement they aren't allowed to charge for use like that.
Instantly cut the hospital portion of the bill from $49k to $9k.