I think there are two separate issues here. It’s entirely possible that the team has, in fact, been working very hard this past year AND they still delivered too little. As a developer myself I totally empathise with your point of view, but the iOS app is the single reason why I cannot with good conscience recommend OmniFocus to my friends and family. I can work with a desktop app that is less than ideal UX-wise (Keyboard Maestro, keyboard shortcuts and other hacks help a lot). On iOS though, the app is cluttered and hard to navigate and you cannot escape it. This is simply not good enough given how much the competition managed to improve things (pun intended) in their apps.
And I’m writing this as a huge fan of OmniFocus, who’ve bought almost all the versions on all the platforms.