What I can tell you per my conversation with WES is that is only applicable for folks who will be starting a new application from hereon. For the folks who had their application rejected by WES, you do not need to submit your transcripts again. To quote you my case, I had my application rejected a month back. I reapplied for ECA evaluation on Friday and within two business days, WES already linked my previously sent PTU transcript to my new ECA evaluation.
To be more sure, I'd suggest you call WES at 1-212-866-6311 and get a verbal affirmation from them.