I'm actually happy about this.
I didn't like that the iPad Mini Retina was looking to be identical to the larger Air, besides the display size of course.
The Air remains the premium Apple tablet, and I also liked that the Air was clocked slightly higher and has a little better performance than the Mini Retina. The Mini Retina is in between the iPhone 5s and the Air, in terms of performance.
The Mini retina remains a great tablet, but if somebody is a photographer or somebody who is looking for the absolute best performance, then the Air is the tablet to get.
Just because you don't use a rMini yourself doesn't mean you should be happy the rMini has a sub-sRGB display. Personally it kind of sickens me that the Nexus 7 2 has an sRGB blue when the even new, higher prices rMini doesn't have that. Colour gamut should be more important to Apple than that. And you just know the iPad mini 3 will have an sRGB display. If Apple prides itself in making the best products then they shouldn't be greedy about the rMini possibly taking market share from the iPad Air, especially considering the price of the base model rMini.