Reading the forum post where the new AW scores were introduced it seems that the maximum attack bonus should be 450 bonuses of 80 points to a maximum of 36,000 points.
https://forums.playcontestofchampions.com/en/discussion/36645/alliance-wars-scoring-update-coming-december-13th#latest
In the last war our opponents received 451 attack bonuses, to a total of 36,080 points.
https://photos.app.goo.gl/sbjwn1XBYs94SjO02
It seems like there is either a bug in the scoring - or at any rate the scoring isn't as documented in the forum post?
Our own attack bonus also looks suspiciously high to me, though it's not impossible so I can't say for sure - but apparently we only lost 9 possible bonuses, which seems implausible as I'm fairly sure we lost more than that in my BG alone.