Articles like this are cool. If your router is still plenty fast (which is highly likely), but is run out of software security updates, or you don't trust its OS regarding privacy, or you want features that OpenWrt has, try OpenWrt.
Ideally would be a fully open source router, including open firmware, down to RAM initialization code (code for DDR3 RAM exists), and OpenWrt installed by default, but because of the economy of scale, such a router is going to cost more and price is simply the lowest common denominator for many.
I'll stick with a Flint 2.