Having struggled for years, the smart home market could enjoy a significant boost if it can escape the plague of multiple standalone controller hubs. The market clout of Google and Amazon could drive unity by opting to integrate a low power smart home radio into their new devices, but so far, neither seem particularly keen on the idea. The picture is complicated by the emerging trend for multiple WiFi gateways within a home, which could eliminate the need for a low power mesh networks, since a single-hop protocol like Bluetooth would find itself always in range of one of the WiFi access points. That could see short range networks like Zigbee, Z-Wave, and even the troubled Thread completely sidelined, ceding…