Control Centre security flaw

First off, I'd just like to say that I am very happy with what I've seen today. It's a step in the right direction.

One thing I did notice which I feel is a security flaw is being able to access airplane mode in control centre from the lock screen.

Imagine your phone gets stolen. All a thief has to do is to swipe up in the lock screen, tap airplane mode, and just like that, your phone can no linger be found in find my iPhone.

I get it, going into the setting app is a bit much just to turn on airplane mode, but do we really need that setting in the lock screen??

 

What I'm understanding you saying is that iCloud login is asked before one can erase an iPhone. Is this a new feature of activation lock? My understanding from the keynote is that activation lock asks for iCloud login after device has been restored.