RIP people who have green usernames: https://imgur.com/V4JmW4Y
Also, RIP people with vision disabilities in general. There are a gazillion areas where contrast between foreground and background colors is too low. Example using just this page: https://pastebin.com/MVUiihPb (I'd argue the switches on the settings page are too low-contrast as well.)
Also, yes, the link color is problematic as well: https://imgur.com/2Rr1Wq0
I'd vote mashing / no restart. We already mash for other things, so I don't really see the issue here.
I'd also vote end time on YCG logo. If I'm understanding correctly, "any order" and "end time on last hit" are contradictory to each other because they'd pretty much require whoever has the longest ending cutscenes to be played last for optimality.
I liked the stream layouts, thought they looked nice and clean. IIRC there weren't dedicated separate timers for races though, not sure if that's something you might want to consider next time?
One thing I was a tiny bit disappointed about is that there was no room on layouts or in the schedule on horaro to indicate commentators' names. Granted, there probably weren't too many games in the last marathon that had dedicated commentators, but if races become more common, maybe dedicated commentators will as well?
(On the other hand, it was hilarious to watch the VOD and notice I got mistaken for SpikeVegeta in Twitch chat while commentating the Assault Android Cactus race.)