The article even makes the clear. How the submitter misread that is beyond me.
The advantages of this board: Smaller. eMMC connector. ADC. RTC. Better power management. Small LCD module option ($30 incl. usb hub and ethernet).
Disadvantages: USB/Ethernet on a different board ($20), connectors sold separately ($4).
The RPi B+ resolves the power management issue.
The advantage of being compatible is that the software support for the RPi is actually very good, and there is a massive community.