It seems like the MB bots on Leviathan are gone. At least the ones I'm aware of. Maybe they changed names or made a new character, but it doesn't seem like they are there. I see people undercutting by 1 gil (which is normal). What I don't see is one guy with multiple levels of DoW/M/H/L gear up for sale that is always the lowest by 1 gil and then puts up another piece of gear to replace the one that sold within seconds.

Of course, it could be they just aren't ready to bot crafting/selling just yet? I don't know. But it has been nice. I have my doubts SE took care of them, but maybe they did.