The issue is that some people like some devices wired. A file server or workstation might need full 1Gb speed to operate efficiently, especially with 1Gb internet. Wifi, especially the way most ISPs install it, may deliver insufficient speeds to perform large backups or for working from home. Most mesh hubs, as supplied by Bell, are designed to provide maximum coverage, not maximum speed. While they are usually adequate for portable devices and video they may be too slow or cause unacceptable wifi network congestion for other uses.