How about we just get rid of the word "reboot" altogether? No one can even agree on what it means, making it worse than useless.
Should it have been a straight reboot? No, I don't think so, and I have yet to be convinced otherwise by any argument or assertion I've seen presented (most of which have tended toward the "Admit it's a reboot! I demand that you admit this was a reboot!" end of the spectrum, with much invective and frothing at the mouth.)