I don't remember her talking about controlling internet, only that she wants social media to be more accessible since terror can thrive in hidden places like whatsapp.
And that may be partly to do with her suggesting she will try rip up some human rights in order to combat the terror more effectively.
The future is heading that way anyway, although there will always be hidden communications (security is usually behind threats). I don't mind it to be fair. If someone wants to check my logs for anything terror related go ahead, if they come across some juice with my girlfriend who gives a flying fuck. If I get hurt because of they leaked or used what they read for gain or else, I should be covered against that.
I admit it could scare and worry most though and since the issue will just go elsewhere or on a new platform it isn't necessarily doing anything. What would be good is to tighten up sentences, warrants, make any form of terror a huge crime, which she has mentioned once too.
edit: the problem now isn't really about being caught up in an act (because it's exceedingly unlikely still), but that the gov. knows of these people for terror yet doesn't do anything until they are 'actually about to do something' .... which is mental :D