It's less about control and more about unhindered capitilism. Something a lot of people have blinders on about this is about capitilism and the world is fast moving towards a big fracture between the haves and have nots.
DRM is fundamentally an attempt to rewrite reality, or at least the computing aspects of it, in ways that are not possible to do with laws of physics in general. An idealized DRM setup establishes a faux reality, a virtual environment running on top of reality, in which bits have extra rules to it - codifying the weaker attempt of what IP regulations are doing to information in general, i.e. establishing a faux legal reality, in which bits carry colour, and with it restrictions and consequences.
The worst part is, the forces that push us to this direction are shielded in plausible deniability and good intentions, as DRM and cybersecurity are, in the limit, the same thing, so the unhindered capitalism control freaks get to hide behind fear of cyber criminals, while secretly using tools of protection against us.
Neither in politics nor in corporate announcements was there ever a shortage of "good reasons". People are creative when it is about power and/or money.
Huh? They are the opposite - someone from another country can remotely control my phone/computer/car. Seems like a trojan
This is direct in case of media companies; for banks, you may be a "valued customer", but your phone is considered a threat actor; their excuse is that your phone (or you) could be pwnd. And then, in general, service providers see potential competitors as threat actors, too.
Security tech is, by its very nature, a tool of control. Whether that's good or bad for you, depends on who's in control.