i disagree with that -- i don't agree that nicalis is acting like a mainstream publisher generally (for instance, nicalis still posted fanart on its site, communicates with fans via instant messenger, and in other ways generally stays in touch with the community), and i don't agree that nicalis is not an indie developer or not acting like one; it's not as if EA bought cave story. the issue is only whether their actions make sense -- e.g. does it make sense to make these games wii-exclusive, and not tell anybody why. i've yet to see a rationale about why it'd be a good thing to not tell the community why they elected to go wii-exclusive.
If we knew the reason, chances are we'd be discussing about whether it's right or wrong right now. I think that itself would be a reason to keep their mouth shut.
Anyway, I just found a interview with some relevant information on the wii-exclusive question, even if it's all a bit vague:http://www.gonintendo.com/viewstory.php?id=58250