You went oom pretty fast shifting in and out. The talents for 30% redux of shifting were easier to get than they were in Vanilla.
Tree of Life is pretty mandatory for PvE, and I remember the argument being why slow yourself with a permaslow from ToL vs the Extra Healing. Arena it was a no no, but Randos, do what you like.
Some people still ran them (did lousy DPS) and swore by them. They usually got laughed at, hit with a stick, told to sit in the corner, and stop being dumb. The lack of scaling with feral in Vanilla was a thing(Kitty Paws were a fixed 99 DPS IIRC Two hander?), and from what I remember, it was one of the things they tried to fix in BC. The squid staff out of Kara was one I was most excited to get. The wolf’s head helm is still contested. Some say the extra stats and the meta isn’t worth the extra energy, some say it is. Depends how much effort you want to put into it. I didn’t run it, didn’t was the hassle nor the mana pot costs. The guild leader did, did a extra DPS, and enjoyed it. With a non world first guild, it probably isn’t an issue. Like others have said, your utility+decent DPS is a good combo. But it is a different set of people playing. We didn’t have many min maxers. Seems to be the opposite now.
I honestly don’t remember if Resto had a non battle rez. I don’t think so, but not sure. Sure as hell didn’t have one as a feral. Was one of the things that got complained about in five mans with a feral/resto healer if IIRC. But we had a pally tank, so not as bad.
I consider BC the “happy times” for druids. It was a powerful class, and the most fun I have ever had playing a feral.
Edit:I am not so sure about the MCP, I can’t remember if was a private server discussion I read a while back, or from a dude I knew that used to love to try and find ways to break the game (Engineering in PvP and other things like that, low level items that hadn’t been nerfed) But I am pretty sure he tried the MCP in BC. But not sure.