Numerous Developers have stated quite the opposite, in fact some have gone as far as say it's easier to develop for than the Playstation 4. 'Xbox One Easier To Develop For Than PS4' Says Witcher 3 Developer
Some People may use the Xbox One is 'harder to develop for, unoptimzed, and or driver kit issues' excuse to justify is lesser graphical fidelity of games compared to the PlayStation 4.
"The Xbox One is pretty easy to understand because not just the hardware is similar to the PC, but everything like the SDK, the API is really similar to what you would find on a PC," said Torok, speaking to Eurogamer.
This is not true.
Project Cars Dev have said similar things,Link