Now...I do think there are those within the system who feel a nationwide consolidation & unification of benefits might be worthwhile. It will be a long time before this is put into play, but discussion is beneficial.
The reason it was given to the third parties is practical - they have the structure in place to make it happen. I remember when the interns & clerks (before technicians were even an entity) - but most of you anyway! actually typed manual claims, folded, stuffed envelopes, stamped & mailed the claim. Then we waited 90 days...then sent clarification, finally the claim was paid after 180 days. - You don't want to go backwards! This computer, online, realtime system is so much better, but its expensive. Why reinvent the wheel when its already there?