The best camera is the one you have on you... is of repeated idiom when this sort of comment comes up.The technology or the idea sounds very interesting.
I get the idea about phones having all this camera for a quick way to get pictures. But these pictures are not meant to be professional products just for personal use, for social media. Do you (I dont have social media account) really need those multiples cameras and sensors for social media pictures? With all this new cameras and sensors are phones trying to replace DSLR and video cam?
Well, if this new features allows us to scan an object and create a 3D model and load it into CAD, then that will be revolutionary but if its real world application is only for taking pictures, I dont know what to say
Like you're not wrong, in that a smartphone camera is pretty much the "bottom" rung for quality of camera. However, it's often the one that is always on a person and convenient to take photos. Upgrading that capability with more quality photos is not a bad thing.
Will it rival higher quality cameras? nah, of course not, it's just a limit of physics. But not everyone walks around with their DSLR, mirrorless, large format, or even point and shoot cameras in their pockets all the time.
However, continously adding "features" like this 3d sensing needs to weight the balance between cost and value. If throwing this tech into the phone for an almost imperceptible difference in photo causes the price to skyrocket, we could argue that it's not valuable enough for the price points. But just adding new tech itself in itself isn't a bad thing.