any sane people would same the same about a map covering the whole world, and yet there is openstreetmap.
No sorry, that's a completely different amount of data. Look at how large (or rather, how comparatively tiny) the OSM data set is. Now see how much photo data you'd get for that amount.
Because it seems like most don't actually read the article:
The sources said that the German ministry made its case following feedback and positions submitted by several associations of German producers, adding that resistance to the Turkish application reflected the stance of German producers rather than the German government.
I've traveled quite a lot with my camera, and never thought afterwards "Ah, if only I knew which temperature they were shot at..."
Considering there's been basically zero implementation at the moment, neither open source nor commercial, there probably is no demand for a feature like this.
Um... What else would they do?