This will effectively make the "6 switch" rule obsolete but I doubt many 1&2 family are using that rule these days anyway. I suppose there are existing split bus panels out there but they are overdue for an upgrade and when that happens they will bump into this rule. It will increase the sales of "Meter main" panels I suppose.
The only debate I have heard on the down side is you might have kids tripping the main as a prank. That could be devastating on an unoccupied house in the winter.
