It seems like there would be less stoppage w/ quarters, assuming it follows WBB structure. I "worry" there would be eventual move to cram an additional break into each quarter (under 7, under 4) because that's just the way things go. Not like I could control it if it DID happen.
Fewer stoppages, but each is longer.
ESPN bumped its MBB TO length to 3:00 this year, for 27:00 of total break.
A switch to the WBB format would mean 7 TO of probably 3:45 each (26:15) in order to not lose ad inventory.
3:45 is longer than most FB media TO.