It's rather unreasonable to expect sites that know they were not impacted will update their certificate. So unless you want to write off your bank's website for the next year or three until the date expires & they renew it then, (banks seem to have avoided this- suddenly dawdling behind the bleeding edge doesn't look so bad!) scorched-earth policies are a bit much.
Actually I might even say the opposite; if the site is secure and the certificate is older than 4/7/2014, that suggests the site was not impacted. If the certificate is newer than 4/7/2014, that pretty much guarantees the site was impacted. It is possible the site patched openssl and did not renew the cert, but in general people are not going to do one without the other.
