But then the article is very short with very little substantial problems. The galaxy S series has been using a lock-screen like this for ages and they seem to be doing just fine.
Of all the things that could be said about iOS 7, I think the lockscreen is one of the least likely to cause problems. People unlock their phones dozens of times a day, my guess is that people will learn it after 2 times. The thousands of times after that it won't be a problem.
I would bet that changing the from the bars to the dots is a marketing maneuver, remember the "More bars in more places" ad campaign, the bars icon was specifically used, by using dots, Apple is diverging it's identity away from AT&T. It's minute, but a detail none the less.
But then the article is very short with very little substantial problems. The galaxy S series has been using a lock-screen like this for ages and they seem to be doing just fine. Of all the things that could be said about iOS 7, I think the lockscreen is one of the least likely to cause problems. People unlock their phones dozens of times a day, my guess is that people will learn it after 2 times. The thousands of times after that it won't be a problem.