I received the email and had not previously downloaded the Map Updater tool or registered on the site with my VIN. I'm a first time user of the site and the Map Updater.The e-mail I got didn't come from Subaru of America, per se, it came from Subaru-Maps.com, I.E., the website you go to download the updater tool, which is run by Harmon. I'm assuming that only those of us that previously downloaded the Map Updater tool and registered it with our VIN#'s got an e-mail. No one should be expecting to get an e-mail from Subaru of America as I doubt they want to encourage non-tech-savvy owners trying to do this update themselves.
I received the email on 2/25/2020. Sign-up and VIN registration process on the site went smooth as did the download to USB and install in the car on 2/25/2020.