Your post almost makes it sound like The Wolverine was more successful then TDW. Wolverine is my second favorite character, but let's be reasonable here. It doesn't matter what fans predict online, that shouldn't be used to determine whether a film is a success or failure, the numbers tell the tale. You scoff at the 200 m domestic number, but that's 70 m more then the Wolverine. It's also made 200 m + more WW. The first Thor made roughly 50 m more then TW and that was pre-Avengers. If the Wolverine sequel has more then a 200 m dollar increase over it's predecessor, then I'll agree with you and undervalue the Avengers effect. The Wolverine is a solid hit, TDW is a big hit. In terms of fan response, Thor also comes out ahead at the various sites that people like to reference. Both films are a 7/10 for me. Good, but not great from my perspective.
The bottom line is there's no need to undercut one film in order to prop up another, especially since neither of these two films need it.