I honestly don't know who will make it out of Group A, it's so stacked. In Group B, Zeals have not seen that much action in the offseason so I'm least confident about their chances there.
But in 6 team double elim, seed 1 gets a free winand need to win just one game to get into upper finals, which is technically already top 3, which means they are qualified if there are 3 slots
winners' finals secures two slots then whoever advances to losers' finals secures the other slot, so yeah seed 1 only needs 1 win unless they lost their first match.