Zenimax is developing ESO, not Bethesda. Zenimax brought on Matt Firor, of Dark Age of Camelot fame, to run the ESO team. Bethesda is the publisher.
To each their own, but if you hate MMOs to begin with, it's going to be hard to convince you of anything, other than that other people will like the game, even if you won't.
That said, I wanted to speak to a couple of your points, for no reason in particular, for the benefit of those interested in this game who are watching this thread. If you are checked out already about this game, you don't have to reply.
Crafting - I know nothing about it, other than that it was disabled for this beta test, as they are not testing the crafting system yet, although they do plan on introducing it later (prior to release). I don't know if that means crafting weapons, armor, consumables, etc., but the raw ingredients are still in the world.
Character customization - Very much in the game, and as detailed as Skyrim's character creation screen. I think I spent 30 minutes on a Wood elf nightshade (rogue/sneak type character).
(note this isn't my image, i found it on google)
Any MMO is going to have to balance the compelling single player story with the fact that the same story is being told to everyone playing the game. Not everyone can be the Dovahkiin/Last Dragonborn/Chosen Son of God/Anointed Savior if 500,000 other subscribers are told the same thing. Any TES MMO will have to balance this fact and create a believable, balanced world with still an engaging story about "you."
Classes - I don't know how well a classless MMO would work. I believe you still would see cookie-cutter builds become standard pretty quickly, and anyone deviating from that will experience some pretty harsh anti-social shunning. It also would probably be a balance nightmare for the devs as they seek to balance OP combinations in both PVE and PVP against people complaining because their preferred build is not viable for anything.
If for no other reason than effective organizational management, having a class system lets them have a Dragonknight dev team, a Nightshade dev team, etc. and let them perform metrics on those classes to see what is the most popular class, which is broken, which needs love, etc. (Again, something specific to MMOs)
An example of a class-less RPG like TES is Divinity II: Ego Draconis. You could pick up any spells you want and focus on whatever type of combat you preferred, but the community quickly figured out that if you wanted advance in the game, you had to go dual wield. It's been a little bit of time since i played the game, but I believe I ended up quitting and starting over as I could not advance farther with a two-hand build. I think Skyrim had something similar with a sneak/bow build.
Also keep in mind that ESO will be coming out for PC, Xbone, and PS4. The universes won't communicate with each other, but this is being developed for consoles as well, which could end up providing a better experience vs. the useless complexity found in a lot of MMOs in terms of having dozens upon dozens of spells, but only having a rotation of 4-7 for actual fighting. ESO will have to simplify this down for console players, and I don't expect to see a different system for PCers.
After the abortion that was the Skyrim UI, I am looking forward to this.
Anyways, just my thoughts.