IMNSHO this is 100% largest problem with 4e. It's not the mechanics, it's not this or that. It's the presentation. 4e is presented with a very strong voice - the previews were strongly worded, the core books are strongly worded, the bloody modules are almost entirely combat and everything since then has been colored by that.
4e is no more about combat than any other edition. There's at least as much support in 4e for many other playstyles as there is in any other edition. But, and this is the biggie, all that support is buried under ten tons of crappy verbiage that is telling you "Play THIS WAY!"
I mean, 4e has pretty decent ritual rules. Characters have all sorts of out of combat options. But, when you look at the character section, what's the first thing you see? Role: Striker! Controller! Leader! Following that is a wall of powers, many of which are specifically combat powers. All the non-combat stuff gets ignored because so little attention is paid to it.
I honestly believe that if 4e had been written in a softer style, we wouldn't be having all these edition wars.