Put simply, there are generally no underlying exports, jobs or people-to-people contact of the type that leads to substantial lobbying on Capitol Hill and within the Executive Branch by influential members of the business community.
If you're one of 170, 000 customers who now have different beneficiaries named for separate IRAs of the same type or different beneficiaries for different mutual funds within a single IRA, Vanguard will apply the newest beneficiary form to all your IRAs of one type--unless you contact Vanguard and direct otherwise.