It's a valuable service for the average person to get these emails without having to set up separate monitoring
"Providing expiration notification emails means that we have to retain millions of email addresses connected to issuance records. As an organization that values privacy, removing this requirement is important to us."
Now there is no contact information associated with issuance records.
But it was obviously valuable enough for them to be doing it for over a decade
I remember it being helpful to me personally when I was using LE when it first came out