The CA itself wasn't demonstrably compromised. They issued intermediate CA certs, which makes them untrustworthy as someone who holds the power to issue interme

The CA itself wasn't demonstrably compromised. They issued intermediate CA certs, which makes them untrustworthy as someone who holds the power to issue intermediate CA certs, but doesn't necessarily undermine the trustworthiness of certificates issued through them directly (rather than through their bad intermediate certs), as their bad certs are not part of the chain of trust for end-user certs issued directly through them.