That I-don't-need-image-stabilisation-because-I-can-hold-the-camera-steady argument is very common among people who for a whole roast of other reasons have bought a camera/lens without stabilisation and feel the need to justify their decision.What I mean by "accept" the motion blur is that I will brace and hold my camera as steady as possible to get the shot, and a bit of noise does not bother me in my typical use case.
So yes, don't tell me how I take my photos. I have an artistic intent behind it.
I am pretty certain that your decision is based on the dislike others (ie, Apple) making decisions without your say-so and not based on actually comparing the options by comparing test images. I challenge you to take two sets of photos, where set A is using focal length y and IS and set B is using focal length 2*y (plus an f-stop that is 1.3 stops slower) without IS and then compare cropped images from set A with those of set B. Obviously under conditions of equivalent ISO values of those taken by iPhones in low light situations.