The Ennead tend to be much harder with fewer players, especially compared to other villains. You ended up taking on 7 of them, which is over twice your own number. With 4 players, you would have faced 8, only at twice your number and five players would have faced the full nine, but at under twice their numbers. With three you can fight 9, so up to three times, but with 5 players, they can still only face up to nine, which is FAR easier with 2 extra heroes.
Still you did surprisingly well in spite of the some of the unlucky draws.
That was also an unusually long game. Not just in real time, but as far as number of rounds. Brutally long in fact.
Good job all, in spite of the challenges.