>> I'm not sure why this is so hard to understand for manufacturers

> My wife’s work WiFi is handled by a gl.inet 150 (...) since at least 2019. All her devices connect to it (...) Cost me 15€ in 2016.

I think this answers GP's question as (yet another) solid reason why manufacturers "can't understand" prosumer needs - it's because targeting prosumers, or generally making products that "just works", is very bad for sales down the line.