You could have a point there. On the following link you would find that there are different binary packages available for download but mentioned in a way which I found a bit unusual. For example, it says, RedHat 8 RPM i386 packages: GTK version (about 4,660,000 bytes) AND Linux RedHat 8: GTK version (about 3,532,000 bytes)
Both are different packages with different package size.Now what is the difference intended by saying "RedHat 8 RPM" packages and "Linux RedHat 8"
Since you tool all that trouble to go so deep, could'nt you notice that one of teh packages was a .tgz and other an .rpm?