This seems like Corporate Memphis absorbing all facets of design. I'm surprised to not find any mention of how infantilizing this is -- childish is absolutely inappropriate. I have always not cared too much about aesthetics for any product where use is the primary factor -- especially since in most cases you can easily customize digital products -- but this trend is really putting me off to the point where I won't us…
One of the major points of criticism is that overusing Claymorphism and going overboard with colors and typography can give off a somewhat childish feel to the UI. Michał Malewicz acknowledged this drawback and gives a few suggestions on how to avoid that.
“The friendliness of those shapes, along with the 3d imagery creates a slightly child-like interface. To counter it, it’s good to use minimal typography, strong accent colors good contrast.”
— Michał Malewicz
There is still room for criticism though since this style of interface is not "somewhat" childish. It is the design language of Fisher-Prize, of large colourful plastic toys for toddlers.If foresee a trend in classical Russian literature inspired user interfaces as a reaction. The Dostoyevsky style, dark and deep.