Then the title should’ve said that… But it’s asking what the current genre is in the title (uses word “is”), presumably to appeal to the “Boomer shooter” vs “FPS” debate, when that’s not what the video is about at all.
A better title would be: “What genre was Doom? Hint: FPS didn’t exist yet.” Or even just “What genre was Doom originally?” Neither is click-baity or overly long.