Makes sense. A general comment is that we should probably include this as part of our changelog (filed https://github.com/WindowsAzure/azure-sdk-tools-xplat/issues/367 for that) so that clients using older versions of the tool, can investigate, before upgrade, if installing a new version will help them (when they see that this doesnt work anymore).
Suwat could you add an entry in the file ? ChangeLog.txt right on the root of the repo ? 

Thanks,
Andre