There was some retooling to the point system in the update. The tweaks made, plus all the new opportunities to influence Cove in the new content, means that it is possible to get a different result than before.
But there will be further changes and chances to influence him in the future, so it's not over for your shy athlete yet!
The full game will also have a Cove Creator where you can just directly pick his traits. How choices impact him will remain a bit of an enigma, though.