None of these images appear to be focused using the hyperfocal distance, indeed none of them appear to have the distant background in focus when one looks closely.
One may often get away with having the distance background in soft focus without most even noticing it, because we often don't see extremely distance views in discernible detail. I think one can also often get away with having extreme foreground objects out of focus, as is the case in several photos you've posted in this thread.
Using an example of my own, in the photo below the whole image at first glance appears to be sharp, because all the subjects of interest (and well everything big) is actually sharp. But if you look closer for a second, the most distant parts of the photo are not sharp.
by Berang Berang
, on Flickr
As in many of the photos you've posted it's more the composition which gives the impression of total focus than every distance actually being in focus.
It may also be appropriate to think about relative sharpness, at f11 diffraction will begin to contribute a slight softening over the whole frame, which by slightly reducing the sharpness of what distances otherwise would be in sharpest focus also has the effect of "leveling" the relative sharpness of near vs. far. Basically the sharp parts become less sharp so the difference between them and out of focus areas becomes less noticeable.
Further along that line, the smaller the image the sharper the whole thing will look. I suspect that some of the examples you've posted wouldn't appear nearly as uniformly sharp if the file sizes were larger.