The projection fields order should be respected both in table view as in the order of field of the export dialog
For everyday usage patterns, I find myself constantly having to organize the fields order, according to what I have previously set on Projection on the Exports dialog, this alone would be a huge improvement.
Also as an analytical point of view, keeping the fields order according to projection on the Result pane (specially in Table View mode) would be hugely beneficial for users that really on this visualization for quick data browsing.
Chris Leverenz commented
I also have to keep reordering the fields in the "Choose the Fields You Want to Export" window. Why not use the order that is saved in the export xml file?