Yes, i just did jill/ilyana/fiona. Even though i need a shitload of Bexp it was not difficult at all. Zihark/volug also got some exp/wexp.
(I know I'm ignoring your other posts.) The goal is not so they're good for endgame, the goal is so they help for P3/4, endgame is not a big matter to worry about, You've got all the royals and hopefully SOME(at least like 4 lol) units with 2range.