Thank you for the suggestion. I've added this suggestion as a feature request to our backlog and will let you know once it's been prioritized for development.
In the meantime, a workaround for compiling this data would be to run a report on both the order and order line table for this LOB. You could then use the VLOOKUP function (available in most spreadsheet programs) to pull in the Ship To Email from the Order report and into the Order Line report, matching on the Order Numbers from each report. That should get you the data you're looking for in the format you're looking for until this feature request is prioritized for development.