Actually making the change now without citing the date of effect can be construed as fraudulent activity to suppress the evidence of a crime after the fact.
Ridiculous.
First, Eric is a Bitcoin Core Developer , not an ethereum one, thus is merely doing a service to educate the general community.
Secondly, Github keeps a clear history, thus any lawyers can still clearly see the transition and prosecute those like Tual or other ETh devs who have falsely lied or misrepresented their product to investors.
Anyone with common sense knows that their is no possibility to cover up or suppress this type of evidence.