I never understood the whole Shutline/Flashlight comparison

Granted, I have not really read much of Flashlight, but the little I read, it never struck me as Shutline jr, and one time I was reading a random chapter of Flashlight and the ML just rubbed me the wrong way that I just gave up on even trying to continue to read it.
So now seeing all the discord on Twitter and on here, I guess my gut feeling was correct.
I’ve gotten to a point in my life where obsessive types are not to my liking (when it’s presented as a romantic gesture).