The first time I was an IC, on Jimmmm's site, I played it more or less how Robz is playing it. A more experienced player, I wish I could remember who, it may even have been ADK, might also have been shraeye or Galz, advised me to not vote until the very end of wagons as IC, because my vote on a bad wagon gave scum too much cover if they got on after me. In subsequent games where I've gotten the IC role, I've tended to avoid starting a wagon unless I was fairly certain about it.
The fact that my wagon started with a vote from Robz but has been pushed by ADK is telling. It gives ADK cover for when I flip town. "Oh, well I didn't start it, it was the IC, I just followed along." Again, look at the votes. ADK votes for MiX, gives their reasons. I say "those reasons make sense." Robz tells people not to fall into the trap of voting for MiX, then votes for me. Even if Robz didn't outright say "voting for MiX is scummy" the fact that he immediately voted for me implied it. Then ADK jumps on me. Even though I was literally sheeping their case. I just don't see a town narrative for that behavior at all. But it makes perfect sense to me as a deflection tactic from a scum player when the IC calls their case scummy.