Yeah you're totally right because the PS4 SDK development will stay exactly the same for the rest of the generation while the XB1 SDK catches up resulting in more parity between multiplatform games. Right?Multiplatform development gets easier as the generation moves forward and versions of game only get closer. Never further apart. That's how it's always been and it will be the same this time.
If people are getting upset because the Xbox One versions are getting closer and closer to the PS4 versions, then they have a long and miserable road ahead.
No. There is an obvious difference between the hardware of both consoles, if anything versions will move further apart from each other as this generation matures (it depends on the dev though)