I tired the process as well using the residential example included with Revit 2017, and was unable to execute the downloaded file of a model that ran on your server. As the modeling options offered through Insight interface are limited, a practical process would be to use the interface as the geometry generator for other EnergyPlus tools.
A straight run with EP-Launch failed with 35 Warnings and 5 Sever Errors (I tried to attache the Error Log, but it wasn't considered an acceptable extension). The errors seemed to be with geometry, which should have been triggered on your server.
Import into OpenStudio had the following fatal error:
"The collection is INVALID at strictness level 'Draft', because of the errors:
Field level data error of type DataType .
Error is in an object of type 'GlobalGeometryRules', named '', in field 0.
Additional information about the error type: field-level data is of an incorrect type."
Again, geometry issues.
While I appreciate the direction that is being pursued (rapid BEM), but since I am out of my allowance for sample runs (that limitation was not conveyed before running the samples), I will not be experimenting further with this tool.