I do not understand how this gave me that error message, unless the xml
config beign missing counted as a corruption, but the problem was that
.rar files were not being automatically extracted even with the program
installed to do so.
fix:
navigate to .wine/drive_c/users/Temp/InstallSWTOR/
manually 'extract here including subfolders' the four .rar files
(swtor0.rar swtor.rar swtor1.rar swtor2.rar) into that folder
once those folders are extracted run the setup.exe from that same
directory (Temp/InstallSWTOR/)
after that the launcher works - connects, allows log in, downloads and
patches.