Disclaimer: I have yet to get a chance to actually read the first adventure (hope to have it read by next week).
That being said, I too hope that in general they stay away from the more standard fare -- i.e. relatively simple stand alone adventures. First, there's plenty to choose from on DDi (though admittedly it can be difficult to find quality adventures there, though they do exist).
More importantly though, I think the intrigue-style adventures and campaigns are among the most difficult to craft and run, and thus, its great to have a source of inspiration to pull from. I'm a firm believer for instance, that the mystery is the hardest story to tell effectively. Its an extremely fine line between making the mystery obvious and impossible to decode. Getting it just right in the middle is very difficult. Having examples to use for inspiration (or as straight adventures) is thus a godsend.
Additionally, it sounds as though this path will be a really good example of how to build up NPCs that last throughout a campaign. NPCs that your players continue to recognize and most importantly, NPCs that evolve with the campaign. Its easy enough to have the patron that always seems to be handing out missions and advice, but at some point, that patron needs to evolve or simply fade away as eventually the party will ask "Why don't you just do it?" Or, more to the point, the patron eventually ceases to be authoritative over the group "Sure, two years ago when we just started our adventuring career you seemed extremely powerful, but we're Demigods now!"
So for all these reasons, I really like that Zeitgeist is presenting a much more involved story, even though that won't be all that exciting for some groups. No adventure or campaign will ever satisfy everyone, and until En Publishing can afford to be publishing several adventures/paths at the same time, I think they are wise to carve out a niche. Hopefully, the path will continue to be as interesting as the previously released guides and teasers. I don't know for sure that I will actually run Zeitgeist, but I know that at the very least, its likely that I'll be pulling inspiration from it.