That extra bye week is way more important than home field advantage. Even when fans come back as hfa wasn't what it used to be. With a bye you have one less playoff game to win. Another week to get healthy. Since the top two teams got a bye starting in 1975, they made the Superbowl 73 times compared to only 15 for WC teams. You're just going to see a lot of bad football in week 17 under this new format.