What is wrong? Mainly the fact that those have nothing to do with skeuomorphism, it is only pointless bloat. Those designs have nothing to do with real world metaphors, they just shout "I can use cool textures too!"
And it is not new; the first weave of this epidemy stroked Windows somewhere around Win98 when average developers, inspired by a few actual skeumorphic designs, have learned how to use non-rectangular visibility regions and all this crappy ~1MB shareware become ~10MB (because of textures) crappier (because author had spent most time on "design") shareware that was antiskeuomorphic because it looked/behaved neither "real" nor like a Windows application.
Both Luna and then Aero were nice enough to make people appreciate consistency and refocus on function, while the madness moved to iStuff (ok, Android too, but thank heavens considerably less).
And it is not new; the first weave of this epidemy stroked Windows somewhere around Win98 when average developers, inspired by a few actual skeumorphic designs, have learned how to use non-rectangular visibility regions and all this crappy ~1MB shareware become ~10MB (because of textures) crappier (because author had spent most time on "design") shareware that was antiskeuomorphic because it looked/behaved neither "real" nor like a Windows application. Both Luna and then Aero were nice enough to make people appreciate consistency and refocus on function, while the madness moved to iStuff (ok, Android too, but thank heavens considerably less).