This change has been in the works since 1990, so it's not a reaction to shitty, modern 3rd wave feminism pressure. We actually didn't even have one official version of Oh Canada as our anthem until 1970 (there were some regional variations), so it's not like our anthem is some centuries-old piece.

Frankly, I don't mind the change in the slightest. It doesn't change the meaning of the song, and I personally think that the only reason it was written with non-gender neutral lyrics in the first place is because when it was written, the default gender tense was usually male. It was the language of the time.

The Canada of 2016 is not the Canada of 1966. The Oh Canada of 2021 will not be the Oh Canada of 2015, and that's fine. No country remains static as time goes on, and as a living country I feel that it's appropriate that our anthem is a living piece as well, that will change over time to reflect the current state of our nation.

Most people I know that are angry about this are Albertans. I'm not sure if I've talked to more than five Canadians from outside of Alberta that are even slightly annoyed.