Which is why people complain about and skip AK, even though a few people are strangely, but extremely happy to pay Disney prices to just "slow down, walk around and just look around." AK is not a zoo. Not a park. It's advertised and charges ticket prices, like a theme park.
Well, in my case, I've never had to worry about the one day price of AK or figure out whether it's worth it, because it is included in my Annual Pass. So I never feel a conscious sense of worrying about rather I got "ripped off" on AK price-wise. I'm not saying I wouldn't enjoy more new attractions at AK because I would. But, being an Animal lover, I'm the kind of person who can easily spend a FULL DAY at a regular zoo that doesn't have ANY rides, just enjoying the animals. When you throw in the fact that AK also does have some more traditional type of "Disney park" attractions like rides and shows, I find it actually difficult to finish the park in a FULL DAY when it keeps zoo-like hours and closes at 5 or 6, without spending less time than I would like to spend viewing the actual animals.
When the park closes at 7 or 8 PM, I find it easier to do everything without feeling rushed. But if I tried to finish it in a half-day, I would definitely feel too rushed, and wouldn't be able to enjoy it as much as if I slowed down and savored the details. And that's why I personally don't consider it a "half-day" park. However, I can see how people who aren't the type to spend full days at regular zoos viewing animals may feel cheated if they paid the full single-day price for AK expecting it to have as many rides as say, MK.
One of the great things about having an AP is you don't have to worry about seeing an entire park in a day, or, conversely, whether or not a park has enough of interest to the ticket buyer to fill up a day. You can just savor and enjoy them for what they are.
I think what's important to remember about AK, though, is, that while AK is "Nahtazu", in the sense that that's not ALL it is, it is still an AZA-accredited zoological park, and just as Epcot is Disney's interpretation of a classic World's Fair and Blizzard Beach is Disney's interpretation of a waterpark, AK CLEARLY is Disney's interpretation of the zoological park genre. And as such, while it will have more traditional Disney attractions like Everest, Dinosaur, Bug, and Lion King, the more zoological-oriented attractions like the animal trails are always going to be a major part of the AK experience.
Being a fan of that genre, I guess I see AK more in a half-full than half-empty kind of way. In other words, I don't think "Wow, there aren't enough rides here to fill up a day", but rather "Wow, I had a great day enjoying the animals on all the trails and exhibit areas, got to do a better Safari than I've experienced at ANY zoological park, saw the best Bird Show I've ever seen anywhere, and as a bonus got to do some typically Disneyesque rides and attractions that don't involve live animals (like Bug, Everest, Kali, Dinosaur, Nemo, Lion King, and the AWESOME Jammin' Jungle Parade) that you won't find at ANY zoo!
Having said all that, getting back to the topic of WS, I agree that World Showcase could use more attractions, and feel each nation should have an attraction, or else, yes, the nations without attractions can feel like a glorified mall - albeit an extremely well-themed one.
One thing that would be great if they DID add an "E-ticket" to one of the pavillions is it might cause them to rethink the 11 AM opening, and start opening WS with the rest of the park again, which I would like to see (or at least maybe open the country with the E-ticket with the rest of the park).