So is griffith moving really fast, or is he just charming others around him in non resistance? So far we don't really see a reaction from Farnese and Schierke losing casca or them seeing the guy from her memories, hopefully we get some downtime where that stuff comes later!
Griffith is still like an unapproachable big bad, but he definitely screwed up in taking casca. Guts was content living his life on the elf island but now like in the conviction arc, he has to rescue her once again. Maybe if his sword gains more dark energy from killing apostles, he'll be able to do more then cut griffiths hair.