David Ige only got 49%, so Aiona could’ve theoretically won with all the 3rd party votes. But Ige and Mufi are both dems so anyone voting for them would never support Aiona anyhow.
Mufi is a moderate dem, his voters are ones HI Republicans need to win. Aiona would have taken the majority of them, but Ige would have gotten more than enough to go over 50%.