Intel keeps popping it's head into the networking space every few years and backing off. This is just one more foray.
Intel based designs are just standard embedded PC designs with standard NIC chips. They choke on data rates faster than 10gbps. Wouldn't compare then to specialized chips in anyway.
The main problem is that the industry is loosing embedded developers who can read a datasheet and develop firmware. We have a glut of standard C++/x86/Linux developers. Hence the growing popularity of lazy solutions like embedded PC based networking gear.