The whole debate about exclusive vs multiplat really comes from a lot of ignorance, some of it purposeful and some accidental.
Look.
Yes, it's sad that exclusives won't get to be played by all the different gamers. But really, if the game is so desired, then they should think about buying a system to play it and various other games exclusive to that system.
For example, I'd really like to try sunset overdrive, but I don't have an xboxone. I'm not going to buy an xbo just for that one game, but maybe eventuially I can find some other reasons to have an xbo.
When microsoft started their second gen system (the 360) they were learning from an experience that hurt them in the previous gen vs ps2. Lack of library. In order to correct this, they had a huge campaign where they basically went out to convince devs that a multi-console market was healthier for profits.
The devs looked at this and thought, hey yeah, if there's more than one dominant console, then there's potentially twice as many sales...and we can hedge our bets on which system is going to win by simply making games for both.
The actual result of this mindset was to create multiplats that didn't really take any advantages of system functionality (like developing for the cell), or multiplayer server values.
Think about it like this. You have a single player game with multiplayer components. You decide to make it for both 360 and ps3. You program along the baseline because it is simply easier, OR, you program with the prediction that MS is going to take care of server hosting. The result is that multiplayer is lacking for both, or that the 360 one is great while the ps3 one (which wasn't a very good environment for server hosting) is lacking.
What I'm saying is that when you program specifically for one console, you are able to take advantage of distinct differences. It's not unlike marketing to both a child and an adult. If you want a product that's good for both, it has to be something they both like and use and understand. Whereas you could also have a product that is "kid-exclusive" because it appeals directly to children. Do you understand what I mean?
The difference between 360 and ps3 was not so great as that analogy, but at least according to statistics, it was a difference of about 6 years. The average 360 player was 13-24, and the average ps3 owner was like 18-30...and the historical tastes of the games are different as well, with certain genres selling better on each system, and even both had different regional popularity.
While the machines weren't so different, the users were.
Because of this mindset, trying to share a game library between very distinct consoles and demographics, what it led to was compromises everywhere. Last gen became the "annual installment" generation, because in order to make money, you had to capitalize on successes. It became that much harder for medium sized studios to compete with bigger ones. It gave all the power to the ea's and activision's and closed a lot of other studios because in reality, it wasn't healthier to have more consoles...it was actually splitting the market in half, raising entry costs for owners, and halving potential target demographics.
You needed money to make money last gen. This gen we are starting to see a lot of that change again. Smaller and medium sized studios are releasing games again, a lot of them exclusive. This is because the market is much healthier for these types of companies.
A multi-console market is only healthy for those with the money to finance multiple developments.
I would suggest, that if you really want to play a game that is exclusive, then buy the console. Otherwise, be content with your purchase.
Exclusives are here to stay.
IE; a good example would be cell-phone cameras. Cell phone cams (especially front facing ones) are ever increasing in resolution. However, front facing cam res is primarily a feature associated with gen Y (the selfie generation). If you are picking out a phone and there is one with less functionality but a better front facing cam, and a phone with better functionality and a lower res front cam, chances are an older person will pick the latter and a younger person will pick the former. Now, some phones target specifically older people, and some specifically target younger people. Ones in the middle tend to do the best, however, the competition in the middle is crazy high with a lot of the phones being almost duplicates of one another with minor surface changes. And then you also have phones on each end of the spectrum that do really well, though the gen Y type phones tend to do the best. That's why iphones with high res front facing cameras are the current best selling but are getting displaced by feature-based galaxy phones.
Basically ms convinced every phone carrier that these "mid-range phones were the best", and everyone tried and a lot of them failed because the two with the most money (samsung and apple) were too popular.