That is the same color, I think Redline reviews calls it out in his video.
I dont think you mean pastel, which is a very bright and lightly saturated color. This grey is pretty heavily saturated, so definitely not pastel. I think you mean gloss and non-metallic, but both Vapor Blue and the Midnight Steel are metallic.
So what is trendy right now, and why? Audi's nardo grey was the forerunner to destroyer grey, and its everywhere. The latest versions of grabber blue, aka electric blue or rapid blue are on Toyota RAV 4s. Mazda's soul red crystal with a tinted top coat? Fords and Caddy's and lots of others. Oranges are all over Jeep and Dodges. Pearlescent off whites you can find on subarus and hondas. You dont see many truly unique colors like Lexus' structural blue. Once a color gets popular, everyone else rushes to add that option and drop less popular colors.
Do manufacturers pick colors because they are trendy, or do colors become trendy because our choices are extremely limited? Is every color that Cadillac offers outside of black, white, and silver is "trendy"? I dunno, just thinking out loud here