I spent a while looking at the xml and apart from some minor carriage return / linefeed issues the problem boils down to the fact that the 'sequence' is embedded as a 'children' in a 'bin'
While probably within specification for version 5 of the fcp xml it makes it much less 'compatible' with other daws
With a text editor if you remove lines 13, 14 & 15
<bin>
<name>EAC</name>
<children>
as well as lines 4925 & 4926
</children>
</bin>
Audition will open it just fine
The devs might want to make allowance for such output from Xto7 in future updates
Edit: The next release of AATranslator should now cater for these 'interesting' variants