Today, we at SFC, along with our OpenWrt member project, announce the production release of the OpenWrt One. This is the first wireless Internet router designed and built with your software freedom and right to repair in mind. The OpenWrt One will never be locked down and is forever unbrickable. This device services your needs as its owner and user. Everyone deserves control of their computing. The OpenWrt One takes a great first step toward bringing software rights to your home: you can control your own network with the software of your choice, and ensure your right to change, modify, and repair it as you like.
Or… a decent Openwrt router like the Banana Pi BPI-R3. I believe the only argument for those kinds of devices is the Wifi support but I don’t believe the price and specs on the device shared by the OP are reasonable at all. If you don’t need Wifi, then yes, a good SBC and a cheap switch will be a much better alternative.