My MyQ (Chamberlain) wifi signal is absolute TRASH. I've been through three, and they're all bad. Support was useless.In the IOT space range is a big factor but obviously cost is lower too and considering IOT stuff is dirt cheap, I'm sure that's also a major factor too. Throughput requirements are minimal so no reason for them to do 5Ghz.
Some of the stuff that uses hubs actually runs 800mhz-900mhz LFR between devices and hub to get better range.
However - whatever they use for communication from hub <> garage door sensor is super strong - operates ~15-20 feet through walls.
It doesn't make sense.