It seems that some regulators come to similar conclusions as i pointed out
earlier concerning extended operations for the multi-holers.
Now why would that be? Maybe because there were some decisions when losing one of four that needed a little looking into.
glofish --
As fly3 points out, the "ETOPS" expansion to quads is focused on systems and fires. They will still have the option to press on with 3, so the regulators are not in your camp.