Because forcing people to war you when they concede the only crown that matters to you is pointless.
To further the point, had we spent an entire final 2 months forcing high war win # kingdoms like Freakstyle to war us, our war win # would have been off the charts because who could actually beat us with our science and land totals?
I get what you're doing by making this chart, but it's completely irrelevant to which kingdom is the best and should never be interpreted that way (as you have noted), and is absolutely useless. Any metric which excludes the obviously best kingdom in the game completely from the list is not a metric.
For example, I could comb the stats for any sport and rig stats in a way to make a chart where the worst team is actually #1. The conclusion? No one would care about it.