Earlier quoted context omitted.
What specs are you talking about specifically? It doesn't look like a server at all.
https://on.google.com/hub/#specs The detailed specs page shows a 1.4 GHz Dual Core processor and a 1GB of DDR3 RAM. Thats a little ridiculous for a router
The RAM is about 4x what other routers are packing but the cost difference between a 1Gbit chip and 4Gbit chip is a few dollars. Prices have been plummeting this year and 8Gbit chips replaced 4Gbit as the new hotness. Not to mention DDR4 rolling out so there might just be dumping going on that makes adding 1GB of RAM a non issue.