MF had calculated that it would take more than days for the Occult Seed implantation to finish. She was uncertain of whether to be harsh or not because she knew that the pain was so immense when her Occult Domain was constructed. She didn't want Foel to feel the same experience as she did.
Sure, the merciless Ouroboros seems softened inside but that was what her heart led to her family and possibly her people. To those who oppose her and those who defect from her side, they would face something more frightening than the tribulation from those from the sky.
'The mentioning of tribulation reminded me of Senior Suwa, I wonder where she is now.'
For the love of gods, fourth wall breaking and looking at the narration is not something that a mighty entity such as an Ouroboros should do!