The problem with this comparison is that ordering pizza using some sort of webpage or client-side app is still fundamentally the same interaction as simply calling up the restaurant and ordering the traditional way. The same information needs to be exchanged.

Some devices (e.g. a phone or pizza ordering app) require a network connection because that is fundamentally what the device is intended to do: giving you access to a telecommunication network. A phone or pizza ordering app without immediate network access is generally useless.

On the other hand, a TV only needs to receive a video signal to function properly. If you take away the network, the TV is still useful (it can show traditional broadcast-only video, it can show locally-generated stuff (dvd/video game console), or whatever. You might be able to add additional utility to the TV with a network (automatic guide downloads, for example). Adding the network also brings with it the usual risks associated with being on the internet.

Some may find that trading risk for features is useful. A cell phone can have a lot of utility. The problem is when people start adding network chips to products as part of this "internet of things", without considering if the utility outweighs the risks. Unfortunately, there is moral hazard in this assessment: what is good for the end user ("not being spied upon") is in conflict with the business that sees profit in data mining what used to be the end user's private activities.

things get messy if pizza shows up on the door because some "device" decided you should have pizza