I personally think it does get more interesting. I hated leveling fishing (literally fell asleep leveling it through the 30s) and now it's my fav Gatherer.
In the 2.0 area you can start Mooching, which is using HQ fish that you just caught as bait for something else.
This kind of sounds like an rng nightmare (and it was, literally lotto fishing) but in the HW levels you finally get skills to use your GP to help mooch easier by increasing the HQ chance of the fish you hook, or reducing the time before they bite.
If that sounds like something interesting I'd stick with it. Pretty easy to level too.
I do think AST Balance needs nerfed. i also don't think any raid comp has every seriously considered a AST/WHM comp on par with AST/SCH comp since the buff, and they'd be right. Prior to that, it was WHM/SCH being de-facto, so SCH might need to be balanced (sic) with Nocturnal Sect in mind, same way Diurnal is balanced with WHM in mind.I also think that SCH's one 'real" weakness (AoE healing) was removed in HW. Unless you count not stacking with Noct shields a weakness.
I do think Noct Stance issues are exactly the kind of thing that an expansion (and new skills) could fix without too much hassle though, since the Sects only have two skill differences. But I'm not sure that will be enough to put it on par with SCH. I'd like to think so, but I doubt it based on what we know (admittedly not very much at all). Only SCH can commit to healing/using CDs while DPSing (or being otherwise preoccupied) like it does, and frankly I'm not sure what to do about that. That's far too valuable a niche to leave alone, but pretty hard to replicate with the kits of the other healers.