Thanks for the clarification, xliioper! I had assumed/interpreted those announced changes to mean that MQDs and million miler counts were limited to Skyteam members, but glad to hear that Westjet is included too.
Yes, there is no indication in the Delta account profile of what has been added to the MM counter, but the MM counter seems accurate, and agrees with the Excel sheet I have started keeping since the end of last year (close to 3 MM, and I want to make sure that I get there before the end of the calendar year), so if others do something similar, they should be able to see whether miles on Westjet are added when traveling on a DL award ticket.