I'm not sure if you're being serious or not, but if you aren't, is it really that hard to see that people want something they like to do well?
I am being
somewhat serious. I think it's genuinely destructive to tell fans that they should be happy if their fan-thing makes money and that they shouldn't question that feeling. It's a mindset that will cause more grief in the long run than anything else.
The flipside of celebrating when your thing makes a lot of money is that when it doesn't make a lot of money... you know, how should fans act them? Typically they go into ludicrous hand-wringing and act all miserable, often for no real reason. Remember people freaking out when Ultra Galaxy Legends "appeared" to be doing poorly in theaters last year?
Except it wasn't doing badly, it's that people didn't understand how to read Japanese box office charts. It actually did perfectly well and got a sequel that will also probably do perfectly well. Likewise, here we don't know if W and/or OOO are super-popular or if it was just a slow week at the Japanese box office.
We'll need more numbers to determine that, as you rightfully point out. We know we have a #1 but without gross and total number of theaters, we don't know if it's a meaningful #1. It's perfectly possible for movies to take a #1 box office position and then be considered unsuccessful based on performance in successive weeks.
Now, I don't think it's likely
at all that Movie Taisen 2011 will be unsuccessful, but this is the sort of movie where success is really all but guaranteed. Japan consistently loves Kamen Rider movies, even badly-reviewed movies and movies from poorly-regarded sub-brands end up doing well enough. At this point I think it would take a multi-year string of really bad/unappealing KR films to break that winning streak.