Although this is my first post, this is something I've been struggling to find balance in for a while now, and I feel Wortox really highlights this issue better than any other character in the past. (So sorry for the long post)
When regular Don't Starve was first created, with it came characters, and the developers weren't concerned about balance, as the character you chose is a personal option, and I might go as far as to say they purposely scaled the usefulness of characters from early to late-game, with the more easily unlocked characters more useful for beginners, and the later unlocked ones more useful than the others, or so it seems to be with EXP unlocked characters (Except Wolfgang).
The issue with Don't Starve Together, however is that it's aimed to be, or at least function well as a multiplayer game, which it should have. However with the introduction of all of the base characters unlocked at once, many characters were left "useless" to the majority of the fan-base, such as Willow, who was really only geared towards beginners, and while it does sometimes work with her, there's not much reason to play her over, more interesting characters when she was meant to be an introduction to character perks, which has caused Wilson, Woody, and other dull, relatively weak characters to be left in the dust by better players, and in some cases even noobs.
While many people push this off as you can switch characters to whoever you like, ultimately when you buff the strongest character in a multiplayer PvE game, you make the game as a whole easier, which can be disastrous for a game that advertises as being an "Uncompromising Survival Game" While balance should not be the #1 concern in a game like this, every character has to be balanced to an extent, or have a clear place in the game in order to keep this kind of structure, or you risk wasting tons of creative character lines, or even making people downright bored when everyone keeps on playing the same two or three characters.
When getting Wortox as the new DLC character I figured he'd probably be more powerful than the average character, being a DLC and all, but the level of easiness that he is on is beyond crazy. Killing Bees, re-planted Lureplants, or really anything makes collecting souls laughably easy, which provide unlimited hunger, health, and the ability to dodge attacks, at almost no cost (provided you either want sanity or place the souls on the ground instead) not to mention teleportation! With his immense healing power I could see many fights coming down to whether or not you have a Wortox on your team, and as a consequence him being dramatically overused, which will not only make newbies feel (too) weak compared to people who buy the DLC, but make people who have him feel worse as a consequence, feeling as if there is no debate of who they should play, and these affects will still continue to a lesser affect if Wortox is only slightly nerfed.
To conclude, Klei should definitely nerf Wortox, and hopefully focus on balance too for the other character's reworks, as it's just as important as having a cool character in itself.