I get your argument that the first game a person plays is not the definitive experience for them. The examples you gave were of the first installments in franchises that improved as time went on, or refined their gameplay. In many ways, the same thing has happened to Zelda but the additional layers of depth, like time travel, overworld traversal, motion controls, and even emphasis on story have altered the experience a great deal. Now, if you think those titles are garbage, that's fine, and it is your opinion. But the reason I think the Zelda series serves as a great entry point for video gamers is because it has an established formula that has undergone many transformations as the medium itself has changed. Will Zelda Wii U adhere to the open-world formula enough to be considered relevant by today's critics? Only time will tell.
You seem to hold the original Legend of Zelda in high regard, but I would argue that A Link to the Past and Ocarina of Time are not like the original Zelda at all. At their very core, perhaps, but in terms of their level design, story emphasis, and other Wind Waker was my first Zelda experience. However, I hold Minish Cap and Twilight Princess in high regard because they are the Zelda titles I stuck with until the end, and ultimately gave me a satisfying sense of accomplishment. It's okay to want specific things out of a Zelda experience, but what is the issue of a game playing like the foundations of its franchise? Mario is always about platforming, sometimes in a 3D space, sometimes in a 2D space. It's not uncommon to find people who are able to appreciate and play classic Mario titles today, which means there must be something "right" about the formula. The same goes with Zelda.
I guess the point I'm trying to make is, that your opinion of Zelda and its stale state makes little sense to me. As a Zelda fan, I find your generalizations a bit insulting, but not enough to dislike you about it. Your critique of the series seems largely based on not liking Zelda's core gameplay, and if that's the case, then I doubt the new Zelda will appeal to you all that much. However, I can't really pin down what you dislike about the franchise or its progression because your critique is either nondescript or boils down to "I don't like running dungeons and getting items". You argue that Zelda isn't an appealing franchise for a number of reasons that don't really correlate. Zelda hasn't really been hard in a very long time. The "trend" of the game taking a long time to start is something that has only occurred in two games, at least in my memory. And while Zelda has lots of repeated themes in regards to environment, character, and enemy design, it also has a unique fold to its gameplay in just about every installment. Its had a number of releases and spinoffs lately, so it obviously holds power as a franchise. So what is the problem with the Zelda franchise? It seems to sell quite consistently across platforms. It also does well critically, consistently garnering high reviews from esteemed sources. Are they all members of this "cult" that has high standards? If so, the Zelda team seems to be delivering on them.
I think something we can both agree on, however, is anyone who thinks each new Zelda has the potential to be the greatest game ever is a moron. In my personal opinion, anyone who thinks Zelda Wii U is going to be terrible is really underestimating the potential of the development team. Say what you will about Majora's Mask, Wind Waker, Twilight Princess, or Skyward Sword... each game experimented in their own right and worked with gameplay concepts that were unique enough that, if any incompetent developer focused upon them, they likely would have made a shitty game.