Using an ATX psu's "power good" signal for power loss recovery

So, as I am building myself another printer and I'm planning on using an ATX computer supply, I decided to read up on the ATX spec and I found something quite interesting.



The "power good" signal is pulled low when the power supply has not yet reached a propper voltage or when the voltage starts dropping, which gets me thinking "what if I let marlin's power-loss recovery monitor the 'power good' pin in order to (hopefully) save my prints?"

Has anyone ever tried this? Does it work?
If it does, does Marlin try to get the nozzle away from the print as in not to make a blob?


Sidenote: I will be using a main's powered silicon heater for the bed, which means I should have a few more milliseconds of power than most cases.