CP assets uploads are reverse ordered after upload
Did some more tests. In my finder I have two files:

1.jpg
2.jpg

When I upload these files, 1.jpg is uploaded first and 2.jpg second. In the control panel 2.jpg is the latest uploaded file and therefore the first visible asset. This clarifies the reversed order.
A little trick when uploading multiple files from the finder and keeping the same order, is to reverse the file order in the finder (start with Z and end with names starting with A).