if you want to prove that you don't know shit about how game dev works, you succeeded. Technical works can be cram in a short amount of time if needed. I worked in a company that usually takes a year, on average to design a house, but the total amount of time to finish all the technical drawings are mere weeks once the final concept is approved. Same for game design.

You know absolutely horseshit about game dev yet you shoot your mouth off like some kind of expert. Your vast experience designing houses gives you insight into programming? It is not the same at all for game design. Maybe you can just hire additional people to put together a house, there is no need for huge amounts of background knowledge on the code base of a house. No amount of money can get you a polished AAA game in a month. You can hire an additional thousand programmers, and they will contribute diddly squat for the first month.

No you don't know shit, because I know at least there are data where I live that proves the mode's absence of profit and audience pull. Im sure Blizzard already has someone who is hoarding data about this mode from other games too.