It worked for two decades and was only scrapped because the Powers That Be at the time didn't like it (and has stayed in effect because all subsequent Powers That Be also don't like it). Revivals of it have done really well and been well-received by fans and critics alike. It's wormed its way in one form or another in some of the most influential adaptations (e.g. the stuff that people outside the small comics-reading demographic consume). No one needs to "prove" that the marriage works long-term; that's been established for years and not up for debate. From where I'm standing, it's all a question of preferences of content creators vs. fans and where the balance lies.
As the stewards at Marvel have been consistently telling us since 2007, it was never about the "long-term," but their creative preferences.
For getting back on topic a bit, I think getting a website for movement resources (codified "what we stand for," info on how to write to the editors and spread the word on social media, lists of franchise installments of interest to our demographic, etc.) should be a goal. It'll make it easier to get our name out and network.