I do actually like Motion Blur and DOF and chromatic aberration,
but there is a BIIIGGGGG BUT in this
Motion blur: It needs to be per-object and not overdone or with lower count sample.
It needs to be something really subtle (like in real life) or everything will be just a super blur artifact fest and many developers for some reason love to have this effects with a shutter speed so high, that's always noticable when it kicks-in, it doesn't make sense to me, since per-object it's suppose to be stuble and to introduce speed sense to moving objects, not to blur the hell out of them everytime the it moves at 1km/h speed. So I think the effect is very good to merge movement and give sense of speed to movement, but if possible to be as less noticable and natural as possible, since 2D panels can't give us sense of speed of moving objects.
DOF makes sense in cutscenes, a lot! But in gameplay I usually don't agree with it, it depends on how it's done, for example on GTA V for me it is fine, since it's applied at a
very very very far distance and
actually serves as AA style since everything won't be defined enough at the distance to cause aliasing, apart from that I usually don't agree with DOF during gameplay, I was a little bit skeptical with DOF on Biomutant for example, which everytime you get to a fight, evertything 5 meters away gets blured, it does look cool and stylish, but... it has no porpouse at all, so meh!
Chromatic Aberration For me this effects deserves 0 points or defense, I can't get why developers do use this actively during a game, I do enjoy the effect though but only in specific moments, like we get hit by something and the effect kicks in during half second or something, or we are nearly dying, so it makes sense to have this distortion effect. I can see it's fair use if you are using a camera, like outlast for example, it makes sense to kick if you are using that type of object, but makes 0 sense to use actively 100% of the time if you are playing with a character and you are seeing the word as is POV, and not by a camera