No, they certainly would mind, because this is something that would cause an uproar among the general population, and that would directly affect their sales, besides bringing lawsuits and very bad press.
This is why corporations care about user security at all. They care only because they want us to buy their products. It's really important to keep the profit motive in mind when talking about corporations. Most aren't inherently evil, but neither are they altruistic. They essentially neutral, wanting only to do business with us, so you can expect them to typically act in their own best interest. This occasionally coincides with their customers' interest, simply because it's good business to treat your customers well, especially in a competitive market.
DVD security was fundamentally flawed and could never work, because there was no way to keep the decryption key secret. Modern cryptography with well-vetted standards is currently (and for the foreseeable future) unbreakable if:
a) you choose a strong key
b) you keep the key secret, and
b) you implement the encryption algorithms correctly and securely
Tech companies, especially phone providers, have a lot more experience doing this than a decade ago. Is it easy to do? No, but it's not nearly as hard as it used to be either.