I don't remember him ever being anywhere near as traditionalist adds his 1 Airbender son seems to be.Honestly the only time I remember him being upset about tradition not being followed was the dsrespect about the temple by destroying an important part.
1'10
https://www.youtube.com/watch?v=iLffJaXqUm8
1'10
https://www.youtube.com/watch?v=iLffJaXqUm8