If Akamai realized there was a major security vulnerability more than a year ago why didn't they share this information with the OpenSSL team?
As for why they didn't "share" earlier, and assuming they didn't: the OpenSSL project would probably not have accepted this changeset anyways. It's extremely intrusive and the problem it addresses was, at the time this was written, speculative.
Yes I know that many open-source licenses do not obligate one to do this, but it still seems like the right thing to do to me.