We’ve always said that we’d release on Steam. Years ago we were talking about Steam. In fact we talked about releasing on Steam well before the game even went on Kickstarter. There has been no change of plans here, never ever.
Regarding the marketplace, we need it to be independent of any reseller. The game will eventually be released on various platforms - directly on our website, Steam, GoG, etc… - We cannot rely on a single provider, which is why we have to buid it in our own system. And of course, not having resellers take a huge part of the sale is a reason too.
I don’t understand what the fuss is all about. We’re doing exactly what Elite: Dangerous is doing, too.