The decision can make some sense but it's also hard to know if it was the best choice considering this is plainly a case of not giving consumers what they wished for.
To that end, it's hard to know if including one would've been the best choice either if they have data suggesting most people don't watch blu-ray movies on their PS4s.
They made their choice. Whether it's right or wrong, time will tell. But the overreaction is just hilarious.