Not that easy - any virtual machine, that allows copying material from virtual output devices will break the chain of trust and the certified player will refuse to play.
The problem with the "chain of trust" is that most of the links are held by Chinese companies who bid the lowest. All it takes is one employee with access to the key to leak it, and then everyone has it.
Note the ready availability of HDCP-strippers, for example.
Note the ready availability of HDCP-strippers, for example.