I don’t think tidesage is forced on Kul Tirans, but it would certainly be nice to have an option to play as a purely water / lightning user.
I honestly like the gameplay of Farseer, and I also like the ghost themes. But I don’t like how focused Farseer is on lava bursts. I think they only made it that way because obviously Stormbringer was going to be focused on lightning spells and they only implemented two hero options.