He (or his camera person) did a really good job In capturing the black color inside the CT4. So many outlets don’t do a good job capturing black on camera. All too often on video and still images the blacks look like smoky grays instead of black.Here's another very positive review of the CT4-V.
This gives you a better idea of how this interior looks in person. Seeing a more lifelike black gives you a better idea of how the car looks on the inside. When you see a grayish looking black and reviewer is criticizing what s/he sees as a drab interior it sounds like a legit critique.
But when you see lifelike blacks and you see the red piping, which does a decent job of brightening things up, you can make up your own mind.