I would say that while the action is similar (both instances have a manufacturer adding a piece of hardware to their system offering), there is a difference. If Sony had tried splitting the system into multiple SKUs that had DVD or Blu-Ray players in them, it would have made publishing the games a nightmare and caused much frustration for their customers. If Microsoft split the Xbox One into multiple SKUs with and without the Kinect there would be little to no problems for their customers.
Aside from that, I would argue the benifits of both differ geatly. The first offered a tangible benifit to the customers in every physical game purchased and allowed them the option of buying Blu-Ray movies without having to buy a seperate player. While you may not find the lack of disc swapping to be important, I personally found it very nice to not have to change discs. Also, I like the durability of the Blu-Ray discs compared to the older DVD discs. I take care of my games, but sometimes others might get their hands on it and they're not as gentle as I.
When it comes to the Kinect, it only adds (arguably) to the experience in select titles. The others that rely on it as the main imput device could have pushed the sales of it as a seperate accessory like they did during the Xbox 360 era. There was no need to make all customers purchase a camera accessory that is not required to run the system.
