How is removing (obfuscation!?) smth from the DNA not genetic modification?
Think of it like software -- by flipping an A/B Switch in software configuration you don't add to or remove from a program, you merely turn on/off certain features. Same with methylation -- it's the A/B Switch for protein synthesis, FWIU.
Having said that, I'm pro-GMOs and always roll my eyes when brands go out of their way to say that they proudly don't use GMOs.
I'm honestly not sure which side of the definition this falls under. It certainly doesn't occur naturally.
It's like adding code to the compiler so it produces different assembly from the same higher level code. But it's still added code because the compiler itself is in the codebase.
edit: epigenetic, not metagenetic