If I sound like a broken record, it's because I'm confronted with aspects of the stupidity that is the new Apple UI on a daily basis. Rather than getting used to it, each of these moments serve as a reminder that the design team has gone off the rails. I discussed a few of the elements in the Yosemite UI that drove me crazy in my post, Yosemite the Horror, and I'm still fighting the stupid redesign of Safari on a daily basis.
But here's another example of why this transparency look sucks. I happened to capture this screen while downloading a file.
I've blurred the file name, but you don't need to that to see that the screen is essentially unreadable. Thin dark gray type on a light gray (due to transparency) background equals a puddle of gray, inky colors. Functional? Hardly.
You might argue that this is designer narcissism, but I happened to see a colleague with an Android phone with similar image elements. Perhaps a better rename of this interface should be, when plagiarism attacks. It's kind of like the UI team at Apple saw somebody wearing 6" platform shoes with goldfish in them and said to themselves, "those are so cool, everyone should wear them."
If I could wish for one product to hit the market, it would be a tool that would enable me to reskin the entire interface back to the time before all of this design style took over. Skeumorphism be damned, I'd much rather put up with an electronic calendar with a fake binding that an unreadable screen using modern "flat" colors.
Perhaps the worst aspect of all of this crappy UI design is that, it makes you seriously question the underlying code and framework of the OS. Put differently, if this kind of crap gets through the design filters, what kind of crappy code is escaping through the technical teams?