So, why are people deciding to upgrade remote firmware via secret screens?
Probably because they can ...without even understanding what a design cycle is or what QA is about. These are the same people who complain when they root their phone and then boot an incompatible phone OS. Oh now they have a brick and the "evil" manufacture will not help them. Life is rough ..boo hoo.
There are shockingly many of them despite that they tend to get Darwin Awards or go blind due to staring at the sun.