[1.2.279] Skill nerfs this time

Yup, your assessment seems right on the mark. ^_^

I wonder if elemental advantage was changed for AMs then...'cause if it is, I think it would make them actually weaker per ult compared to before - even with the new basic m. atk boosts? o.o

Also, it makes me wonder if elemental resistance was changed as well.

I think the only reason the elemental advantage seems to be 1.25x is probably because of dual charging, kind of like comb arrow of mages in 3rd job but stronger. For archmages it makes no difference because in their 4th job they never use both element at same time.