Well, because chances are they gave the job of renewing the certificates to the rookie, and he may not have known how to do it, or raised the issue multiple tim

Well, because chances are they gave the job of renewing the certificates to the rookie, and he may not have known how to do it, or raised the issue multiple times and nobody knew the implications of it. I know the last place I worked at, I mentioned that the certificates were expiring, and I needed to pay to renew them, yet they didn't seem to care until our customers couldn't connect anymore.