I don't think you're being fair with this statement. It's true that OS X iWork applications lost some features, but the iOS versions gained features as well. The supposed goal is to continue to add features to both. Apple wanted feature parity and probably needed to rebuild the OS X iWork applications to work perfectly with the iOS variants.
Exactly. And this is the whole point. Apple is sacrificing its OS X apps to the benefit of iOS apps.
Apps for OS X and iOS should not have feature parity. OS X is far more capable than iOS. The processor inside of a Mac is far more powerful than the one that powers the iPhone or the iPad. A Mac is much larger, has a larger screen and a keyboard.
If Apple insists on feature parity, the end result will be that OS X apps will be dumbed-down so that their features can be matched by iOS apps.
An iPhone will never be able to do things a Mac does. If the Mac is limited to doing the same things as an iPhone, what's the point of buying a Mac then?
It would be ideal if we didn't have the growing pain period of taking a step back on some OS X features, but it isn't like Apple just "dumbed down" the applications for the sake of achieving feature parity and nothing else. I find that OS X and iOS iWork applications function much more nicely together now. Granted, it's a raw deal if you only use them on OS X.
Should they function nicely together, as a happy family, at the cost of features?
Apple released iWork '09 in January 2009 and it was a promising office suite, while it lacked several features that would be useful for power users. Then four years passed by, and no update at all. Finally, in 2013, Apple released a new version of iWork with... less features than iWork '09. The big news, however, is that it is exactly the same as the iOS version. Big deal. And it is free! Oh, come on! I don't mind paying US$ 20 or more for powerful software to run on a US$2,000 Mac. What I don't want is to run feature-less software, cheap as it can be, in an expensive machine.
If I wanted software for free that lacks features, I would buy a cheap PC and install Linux on it.
I have a Mac, though. I want power and features. I don't want it to be an iPad with a keyboard and a trackpad.
On to Notability, it's one of my most-used iOS apps. I found the OS X release to be intriguing, but I'm not yet convinced enough of its usefulness to purchase it. It'll be interesting to see where Ginger Labs takes it.
I am not buying it. Pack software with a ton of features and then I may buy it. But port something from iOS to OS X and I will just ignore it.