Did I add this up wrong, or did the mafia literally have more combined lynch power than the town did from Day 1?
You can't really have a game where the scum can out-lynch and out-nightkill town from the very beginning while also having a huge proportion of the total bodies and unlimited communication. The information advantage itself is already so much a big deal, that a vanilla game is considered balanced when scum ratio is about 1:3. By comparison, you increased the ratio, buffed them with a sweet ability advantage, increased their lynching ability to an effective majority, and then nerfed the town further with town-independent win conditions on some pro-town roles (Nia, Boota) and, (good God), a Yoko role whose only effect is apparently the ability to accidentally kill her fellow townies.
The setup was such that even if we went into the game already knowing who all of the scum were, we'd still have to outplay their night actions in order to win. (Which wouldn't be really feasible, since they could coordinate theirs secretly and we could only do so publicly.) And while we theoretically could keep getting incrementally stronger if we somehow managed to last enough days, it would take a whole bunch of them just to bring us to a point where any one human became roughly the equivalent, in total power, of just one of the beastmen. Of course, we'd almost definitely be outnumbered by then.
Even then, that would rely almost entirely on our shitposting Jester (me) staying alive that whole time, which would be difficult enough to manage just on the face of it. The 'Cool Hand Kamina' approach that I took apparently actually worked as intended because it was me, (but likely wouldn't have for most other players), because my reputation let me double-bluff them into thinking it must have been a trap. Unfortunately, I was also apparently a double-wide target given that attacks on Simon redirected to me instead, (which wasn't even in either of the role descriptions), which cut the life expectancy of the role to below even that of a normal Jester. Town really relied on Kamina to have even a bit of a shot at winning, but the practical limit on what he could accomplish before dying (especially with 24h Day phase limits) was just much too low for that to pan out.
With all of that said? I thought it was still hella fun, and the mechanics themselves were pretty great. The variable stats and effects adding some extra layers to the strategy? Excellent. Starting out with relatively strong scum roles and increasingly powerful town roles? Nice. It needs heavy town buffs and also scum nerfs to be a legitimate contest, but I really do hope to see this kind of setup again in some form.