I loved updating facebook by pulling down the notification bar!
what is a share sheet?
this has been discussed like 40000 times since the first beta.
you can still access twitter and facebook quick uploads from any share sheet in ios 7.
That really doesn't help those who used the share widget to update their status etc often. It is a shame for those who used it often, that it is gone. Was a nifty little feature. Esp for those who updated both Facebook and Twitter simultaneously. You could simply copy your status and paste it on the other share widget. I used it religiously.