I wonder if the coinflips got switched how the games would have went!
Personally, I think that that extra card is overlooked far too often when people say "Decided by a coin flip"
If it's a Pillar/Quanta source or you ever have an important top-deck then it was hugely vital to how the game played out.
When it's well and truly a coin flip is when you have same-sized decks and it comes down to deckout. I hate that.