Having to exactly match records -- SPF included -- is one of the grievances outlined in the article. What I should probably have also mentioned is I also reported these using Apple's iCloud feedback form [1], and it might be helpful if others did as well. Unlike Radar / Developer Feedback, Product Feedback doesn't reply back with an ID you can use to track the feedback status :-(
[1] https://www.apple.com/feedback/icloud.html