Legacy's ObitMessenger email alerts aren't completely reliable

Below on the left you see an obituary that appeared in the August 11, 2017 St. Louis Post Dispatch.

Legacy has an ObitMessenger service that is supposed to send you alerts if certain keywords show up in a specified newspaper's obituaries. You can specify up to five keywords per alert, and you can set up multiple alerts. Perfect for keeping track of obituaries with surnames of interest.

On the right is an email I received on August 12th, 2017 stating that no obituaries had appeared in the past 14 days with the specified words. (The alert is localized to the St. Louis Post Dispatch.) I have deleted the surnames from the email image that aren't applicable. I've also deleted my email address.

I don't know why the obituary wasn't found.

A search today on the website returns the obituary.
I may have to stop relying on the email service.