To respond purely to the OP:
I notice that most of what you mention liking is serious anime, pretty much straight science fiction and fantasy type stuff that takes itself fairly seriously.
The series you describe is more of a comedy, or genere satire, and that kind of thing can be pretty hit or miss. I guess it depends on how heavily your into absurdism.
While something of an Anime fan I will also say that in previous years something had to be pretty good to make it to the US even as far as fansubs went. In more recent years we've seen a constant shoveling of stuff onto the US market, which means we get a lot of total garbage.
Concerns over censorship (since anime is no longer totally under the Radar) and also the domestic racism inherant in Japan (fans screaming to keep the best stuff for themselves as purely Japanese, and getting on the case of companies for selling out) also play a factor.
I haven't followed it in detail, in part because of how it began to disgust me (the industry, not the Anime itself), but back in the day I read a lot of translated periodicals having to do with Anime and Games. I've talked about Final Fantasy X and what I found in other posts, but I also learned that the question of "why doesn't this series make it to the US, and that other series that is relatively crappy does" does not have a straightforward answer. Behind all of the talk about liscensing, marketing research, costs of translation, and similar thing a lot of it basically comes down to the fact that the rights holders are concerned that simply by releasing something in the US they can ruin their fan base in Japan, and if there is associated merchandie involved (like Model Kits or whatever) the risks can be bigger than you think.
In the final equasion though, understand there are a LOT of differant generes of Anime, and just because you like one, does NOT mean your going to like them all. Like any other media even within a genere things vary greatly. Just because you like one British comedy for example does not mean you will like ALL British comedy. An absurdist super-high school satire like anything comes down to the writers and how WELL it's done. There are good ones, and bad ones... and yeah a bad one can very much be "WTF" coming down to nothing but a blur of school uniforms, nudity, and epic explosions, if nothing ties thoe things together, or the plotline doesn't capture your imagination, like anything else it's going to fail. On many occasions I've watched Anime (of various generes) and felt the same way. Bad is bad. You can take the best formula in the world, say "this works on paper" and then have it turn out awfully.