I don't see much difference in the mess that FLs was before and what it is now tbh. It's still a huge mess, no matter what kind of class balance there is. It has never been balanced and I do think you're delusional if you think it was. It has always been balanced around the pvp arena modes, which is feast and CC now. Not around FLs.

I think FLs should be reverted to its older 8v8v8 mode (with the proper melee innate resists adjustments, not the current crazy mitigation designed to sustain 72 players on the field), but that would also bring up a lot more skill gaps between teams that are for now completely drowned under the sheer number of players, without opening the can of worms that 4 man premades would be in such a mode.

As a pvp afficionado, I can safely say that with the new pvp I'm not having more nor less fun than I used to have in the old FLs. It's an okay mode for me, but the thing I know for sure is that the pvp rebalance brought so much more flavor and design to each job that I wouldn't go back for anything. They just need time to rework FLs like they did for CC.

However, I definitely feel sorry for players that preferred older models, because yes I can relate with some changes that happened in pve. It's never fun when the devs remove something you grew attached to, even if you were in a minority.