No.

I've been having a different conversation with myself it would seem (having just re-read Mugwump's original post).

I need to lie down in a dark room.

Or have a nice glass of Aussie red.

You think kicking DOESN'T place enormous stress on parts of the body? You think the human body is ADAPTED to kicking a rugby ball upwards of fifty yards?

I guess there's no point me asking you whether you've seen a player pull up injured after kicking, then.

I don't think that goal kicking with correct technique can 'lead to long-term injuries down the line', absolutely not. In my time, I have never seen any evidence to prove this to be the case. Nor have I seen evidence of this in footballers, who compete in a sport that almost exclusively consists of kicking.