That submarine imploding near the Titanic will never be not funny. Especially since the guy who designed it believed in the "move fast and break things" nonsense.
Every person on board paid a pretty penny to be on that sub, so no pity from me either (except perhaps for the teenager who was reportedly terrified to go on, but did it to please his rich prick father).
It already exists. See: Eutelsat https://www.eutelsat.com/satellite-services/tv-internet-home/satellite-internet-home-business-konnect
Can it be jammed? Sure. Not very easy though, especially if you are out of the big cities.