I don't think this was written by a person. The webpage rambles, repeats itself, and contradicts itself. It includes some weird phrases and says things like "* Home Assistant Green Plan costs $99 with 32 GB of eMMC Storage." lol what plan, that's the hardware cost if you want a box that is ready to run HA.
I also don't think HB and HA are comparable like that. This writeup is much shorter and better: https://www.wundertech.net/homebridge-vs-home-assistant/