Apple's design has just been getting more and more cartoonish over the years, do you remember though when the flat icons came out, people said they looked horrible, and I would agree - but we have become accustomed to them and just accept the change eventually.
This will probably be the same, because we will have no other opportunity as most of us are invested into the ecosystem, and to switch away is not really much of a possibility, and there really isn't anything to switch to that is half decent.