I don't think all would agree about the 'correct' side for indicators. As not all are right handed. And you could argue that if right handed that hand is best kept firmly on the steering wheel.
As I said stalk indicator switches started appearing in the '50s - and makers couldn't decide on a standard then. Even ones from the same parent company like BMC.
Indeed - it would be easy enough to make the swap a user choice.
My preference is in the middle of the wheel. So you can vent your anger on that too. ;-)
No need to apologise. You need thick skin to survive these groups. Nor did I suffer any irritation anyway.