I don't know if am a whiner but let me tell you how I got into this community and why hubs are important to me.
I had an Android device like every one else in my area and was proud of it. One day one of my friends brought a 520 and I asked him "Why did you buy this c**p" and he said he simply don't care about apps and smartphone wars. So that was that.
A few days after we were hanging out together outside college, with our phones in our hand, clicking and swiping away time, I became a little curious, I asked him if i can take a look at his 520, and he gave me the device. The first tile i opened was the photos hub, it had a beautiful picture as background and when he swiped it showed photo related apps, albums etc. I asked him "is this an external photo viewer app?" he said "no. its the native interface" I was impressed how it was so different from my Android's interface and seeing my curiosity he kept showing me more features. He showed me how games are tucked away into the games hub, the integration of apps, people hubs etc.
After that, when I looked at my device, for the first time I realized it looked like a cluttering mess.
Two weeks fast forward. I sold my Android device and with some extra money and brought my awesumtacular 820.
Now seeing how the things that made me fall in love with WP are gone in 8.1, people like me have the right to whine a little.
But on the bright side the new hub apps can be updated outside of OS updates. And I hope they bring those features back.