Red is the other (hypothetical) cut the handler could make, which both cutters are ready for.
Set up the upline/dish
Cut to either side while both inside cutters fake out
2 is cutting for the force-side throw from the hypothetical (red) break-side handler dish. 3 is cutting for the same force-side throw for the hypothetical force-side handler dish (which happens in this scenario)
Whichever cutter doesn't get the disc goes deep