The article says "Intel and AMD license the CISC, so they’re the only ones making x86 chips". The "so" in this sentence doesn't seem to make sense since if they

The article says "Intel and AMD license the CISC, so they’re the only ones making x86 chips". The "so" in this sentence doesn't seem to make sense since if they're licensing it then presumably others are making them. Also, AMD and Intel aren't the only ones making x86 chips since both VIA and Zhaoxin are also making them (and possibly others that I'm not aware of).