Mozilla has very recently sent an email to the CAs that haven’t entered their intermediates’ data into Salesforce urging them to do so. ISRG has been included in NSS trust store and therefore was also sent this email to register X1-X2-X3-X4. This post is just a reminder to the appropriate staff that they must promptly enter this info into Salesforce.
Source: https://groups.google.com/forum/#!topic/mozilla.dev.security.policy/cKVzWqtyJm0
https://crt.sh/mozilla-disclosures#undisclosedsummary