I strongly doubt AMD are specifically targeting the desktop/laptop CPU market.
* Cloud computing has an absurd market cap.[1]
* Ryzen has some features that specifically target cloud computing:
* * More PCIe lanes than a Xeon. These are basically useless for desktop/gaming (as SLI doesn't scale beyond 2 cards). This shines for cloud computing because you can fit more GPUs in a blade. There's also ML to consider.
* * Virtualization security features. The chip can automatically encrypt pages, mitigating some of the virtualization attacks that we have seen recently.
* * More compute per watt. Cost is nice to have (which Ryzen has), but cooling is one of the main concerns when selecting chips for high density.
Intel's brand power is a waste of time and money to compete with. Unless AMD can sort something out with Apple (for example), Intel are going to continue dominating the desktop market - irrespective of which chip is actually superior. It's incredibly likely that only enthusiasts would buy a Ryzen - who AMD has catered for with XFR. Essentially, ignoring IGP is likely a strategic decision because it's irrelevant for the markets that AMD can easily attack.
[1]: http://www.forbes.com/sites/alexkonrad/2015/06/18/byron-deet...