You seem to believe that I seem to believe. I believe you don't know what I believe.
If Sony, or any other publisher acted in the manner and for the reasons you insinuate, then we would all be playing shovelware. No company works like that. You don't aquire anything in business whether it be video games or plungers, just to fill a gap in an established line up. You aquire a developer or studio or whatever it is you want, to help with your bottom line, which in pretty much all cases is profit. MS, Sony, and Nintendo would be aquiring every studio they could get their hands on so they could have a steady stream of games on store shelves. It's all about money in the end, not time slots.