That's just an example of a recent case where exclusivity is keeping games off the market. I mean hell, I've wanted to play Heavy Rain, which was originally developed for the PC, before Sony came in and paid them money to keep it OFF the platform. I don't know why you think the market would get watered down without exclusives, there are more games than ever to chose from nowadays as it is. Again, it's like the studios of old only allowing their movies to be shown at company theaters, it doesn't benefit the average consumer and actively keeps games from reaching larger audiences.Company develops a game from funds from a contract with company B to be an exclusive title. After said agreement happens and work is finished, you can't expect them to just let you release it everywhere. The fun thing about the internet is we all know very little of what goes on in these business deals other than what someone hears and tells someone and then someone else writes an article.
Believe me, without exclusives the game market will water down, likely at the cost of pc gaming.
Nothing lost with sunset overdrive anyways, was given away on xbone and I still couldnt justify the disk space.