Why don't Yahoo league's have first round bye's for the top two teams? All other league's do as well as the actual NFL. You should be rewarded for a good season finish with a free pass to the next round in the playoffs. (frustrated with a 9-4 season finish at second spot only to lose in 1rst round)
This sounds like a private league you were in. In a private league the commish can chose the playoff system. It definitely is possible to set it so the top two teams will have bye weeks. Talk to your commish about it.