For at least 2 years after PS3 launched the mantra was that PS3 had no games. There were even youtube music videos about it. So I don't think you can say lack of exclusive games this gen is a thing that makes Sony worse with PS4 compared to PS3.
Also I don't think its fair to accuse Sony of lacking in new IP. It's unfortunate that some of Sony's flagship early gen new IP has fallen flat, but it's not like Sony hasn't been trying to create an exclusive library. For new IP you have DriveClub, Knack, Bloodborne and The Order: 1886. I think that's a decent effort at new IP, and along with returning IP in the form of sequels and remasters that have significant appeal to the never-had-a-PS3 demographic who now own PS4 (like TLOUR) it's a reasonable exclusive line up.
I'm fine with Sony's output and attitude so far this generation.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
