what's also annoying is picrel
for the vocation skill trees you need s-rank memories, and you can only get these from ranking them up afaik
you need 3 copies of the same rank to rank them to the next higher rank (3xD -> C, 3x C -> B, 3xB -> A, 3xA -> S)
there's no speed up button, characters move super slow, and auto-battle sometimes just stops working, so if you want to max out the vocation skill trees, you have to play through these slow and longer stages over and over again
maybe skip tickets haven't been implemented yet and stuff, but this is too much. you'd have to spend weeks grinding that shit. they better start paying me to play to this if they want me to grind all day everyday just so i can level a vocation's skill tree