Who gives 2 shits what Apple puts into its refreshed MBP as long as there is a performance gain.
They could put a graphics card from a Macintosh Color Classic and if they could get better performance out of it than what they are getting now, why would anyone care?
Really don't get why people focus on specs. A computer is a tool to get a job done. It doesn't matter how it does the job as long as it does the job better and faster than the previous generation.