When it mentions that your password has been leaked for a service, is this the plain text pwd (that service somehow stored that way) or is it a hash? Was the website salting the passwords (so no rainbow-table attack could happen)? What key derivation function were they using? Etc...
I feel the red circle with "Password compromised" is way too simplistic if this wants to be a TRUE trusty site regarding cybersecurity. If they just want to show fear and sell 1Password ads, I understand it, I won't consult it anymore. But if they want to really step up their game from a technical perspective, they should include more details.