In specific regards to the "is or is not this yuri" argument, I just want to note that this oneshot was specifically published in Hirari magazine. More explicitly, the name is, "Pure Yuri Anthology Hirari" magazine. Now, I guess some people might be unhappy with simply labelling everything coming from a "yuri" magazine as yuri, but the main idea is that as for a publication from a company specifically trying to sell to an audience which likes yuri, the editors of Hirari chose this work as something fit to sell to their readers. To put it another way: even if this work doesn't really match up to your own personal standards of yuri, nonetheless, yuri fans are still the most likely group to gain some enjoyment from reading this manga (versus, say, "slice of life" or "drama" fans, neither of which specifically compose a large portion of this website's readers anyway).
It might be one thing if tags are slightly inaccurate, but I think another thing to consider is simply what effect those tags will have on who decides to read a chapter. Complaining that a work "isn't yuri" might be fine, the right thing to do, perhaps. However, if you are gonna complain, I would personally say it's more important to try to think of a way to communicate the chapter's content in a way that would still appeal to the people who'd like it most.
edit:
Well, I think it doesn't need that much argument. If people don't like "yuri", I would vote for "step-sisters" as fine. If "subtext" has actually become a thing on the reader, maybe that as well.
last edited at Feb 15, 2014 12:09AM