The way that we look at it is instant runoff voting has been passed as a ballot initiative in a number of cities, but we see approval voting as producing better outcomes, and having better political dynamics compared to instant runoff voting. Approval voting is also so much easier, and it avoids a lot of the problems.
If instant runoff voting can win, then surely, a simpler voting method that produces good outcomes and has good dynamics should also be able to do it."