im guessing that osiris's flower made anubis a god in the duat i think. and that explains in egyptian mythology that anubis is a god of the duat. im pretty sure (read a bit of egyptians history and shit but i could be wrong lmao)
You're right I think. And the duat is - if I'm correct - the place where Râ fight every night the giant snake Apophis in his boat to allow the sun to rise every morning. In the egyptian mythology, if I'm not wrong Seth help Râ in the fight.
So even if I'm not the author, I can drive my imagination that this would be Seth punishment which allow him to see his son Anubis in the duat and even that bastard of Osiris could be happy to see Seth.
Where da hell is Osiris that time? He didn't die right? I looked at the raw and saw Osiris's shadow where Anubis god's power awakened?