Just don’t take anything personal. Being defensive / know best is in this industry everywhere at all levels and organizations.
Being humble in general is hard, being humble in code reviews is harder, being humble to Internet comments in any forum… sometimes impossible. Then repeat that with two super genius experts - eek.
You find everyone is usually trying their best if you ever have face to face (except server admins, they are stone-cold psychopaths, stay away).
Would bet you both are helpful and open minded at the end of the day.