I have something similar, but wifi. Never even tried to connect to it, because you just use the buttons to set temp & time.
I can imagine, though, that an app might have buttons for ‘eggs’, ‘yogurt’, ‘steak’, etc. Or maybe let you program temperature-time sequences. Or let you check how much time is left from the next room. Conveniences. Definitely no need for them to phone home, though, except maybe for an ad-driven ‘recipe of the week’ type thing.
University is ok if you’re starting at zero and don’t even know what’s out there. It’s for exposing students to a a breadth of topics and some rationale of why things are as they are, but not necessarily for plugging them into a production environment.
Nothing beats having your own real world project, either for motivation or exposure to cutting edge methods. Universities have tried to replicate that with things like ‘problem based learning,’ and they probably hope that students will be inspired by one or two of the classes to start their own out-of-class project, but school and work are fundamentally different ways of learning with fundamentally different goals.