Re: Digital Equipment Corp did it once...
The FX!32 process is exactly how CEMU emulates the Wii U (GPU shader instructions instead of CPU instructions, the PPC > Intel bit is 'pure' emulation).
Nintendo are very, very into litigation, CEMU is big enough for the Big N to go after it should it decide to. It hasn't because it knows it would lose (not to CEMU dev's but to the IFF which would back it to the hilt).
Intel is just huffing and puffing, I don't think the PC manufacturers will listen this time, Intel's pockets aren't THAT deep. Intel Inside worked by throwing money at the problem (illegally), not a threat of litigation.