Why does XDOLoader require CUSTOM_MODE=FORCE when LOB_TYPE=DATA_TEMPLATE and not TEMPLATE

I have a script that runs XDOLoader twice, once for the template file (RTF) and then again for the data template (xml).  When I test in an evironment where both files have been uploaded already the XDOLoader for the template file uploads with no errors but the upload for the data template errors because there it looks like the XDOLoader program first checks if the file exists and if so, it outputs a message that the file was not uploaded because it already existed and if it is desired use the CUSTOM_MODE=FORCE parameter.

The check totally makes sense and the upload works when I add the CUSTOM_MODE=FORCE.  My question is why doesn't program do the same check for LOB_TYPE=TEMPLATE upload?