I agree calling the fork and replace it with the proper term of 'upgrade'. It's true to be an upgrade for eth's network and usually what crypto folk will think of with 'forking' is that it will create a new coin. But at this moment, it's more of an upgrade so I think it's plausible.
The term "fork" is most likely used to create more noise. And then all at the last moment to postpone (cancel). This is just my opinion, perhaps it is generally a test of the market, but the market almost did not respond.