I wholeheartedly agree with the op. This is by far the best idea to fix wvw I have read so far.
To those who are saying there is a time value issue, Draygo has accounted for that in his model. It’s in the second post.
@Draygo
It wasn’t clear but is there a cap to the bonus points for holding key areas? If there isn’t i have to agree with some of the posters that it can get ugly once things start snowballing.