You know people beat up on UAD and ProTools for using DSP or essentially hardware dongles. But you pretty much have to. If it is any sort of key generation it will be hacked, simple hardware keys will be hacked.
If guys can figure out root kits and break apart viruses, cracking sort of stuff is child's play in comparison in most cases.
Also the more convenient it is, the easier it is to break.
Slate had a great idea with the unique digital signatures so they can go after them legally. But I worry about other countries that don't enforce pirating. Not to mention the amount of extra work. Worth it IMHO, but once it gets out in a harboring country, or bought under a pseudonym or front corp, it is gone.
If UAD didn't depend on the hardware, they would be prime targets for being cracked for sure! If you are good enough to write a full on emulator for a UAD DSP card, pirating software will not be your concern. You will be making big bucks working for a company. Well and you would probably already be hired by Analog or UAD.
Back OT, this EZ mix is pretty crazy. Just presets I am sure with some mapped parameters. Great idea and probably not much different than the auto-mastering stuff you see as well. Frighteningly it might be decent. But as we all know, everything starts at the source, mixing can only do so much. It is just spices, if the food is bad, it is bad. No spice will save it. So without good acoustics, instruments, mic placement, etc. you might get a good demo, but I don't think pros have anything to worry about.