John has been back in touch a while ago and has explained the issues they were having with the following statement,
Just to let you know that the dark seams issue has been successfully fixed. However, the bump texturing issue is more problematic so it may have to be adjusted by hand after the import, if we eventually cannot specify this additional setting in the output format.
7.4 is about now, and the initial reports seem rather mixed. I have downloaded it but havn’t had time to check it out and test the object export issues.