Same could be said for most binaries: they're just compilations (usually with open source or freely available compilers) of C/C++ code. Shouldn't be too hard to reverse once you got all the patterns worked out.

I see your point though. I'm not very experienced on this and I'm sure some patterns can easily be recovered, but until someone goes through the effort it's still a considerable effort compared to being able to read the program normally, and even when someone does it's questionable whether the original can be recovered with some simple 1:1 translation.