@vaughnbros this rule change makes it worse for eternal formats not better. Every good vintage deck will have certain hands that are almost unbeatable. That is vintage.
Magic is a card game. Variance is part of playing a card game. I lost to Oath while playing PO because I started with bad hands at SCG Con (mull to 5) but I had a turn one win against Shops and some crazy opens against other decks.
If we try to reduce variance in Vintage we are going to make the format all about hyper efficient mulligans not actually playing cards.