Please not
Some times I use desktop mode and only want the contoller in game, having it take over the screne just becouse I connect one will be really a pain
I love using BPM on my TV, but on the PC I much prefer using the mouse and keyboard over all
Just FYI if you got anything of Steam active (chat window, Steam it self) and you hold power button of the controller (at least on Xbox) it will open BPM, need to hold for like 5 seconds (before it turns off)

Oh HELL no. Ive despised that front end from the day it was released and I dont need it popping up uninvited.