If Morek was the only example of a low-density superpower then maybe you could chalk it up to an anomaly, but when it's consistent across time and islands, it's not a coincidence. I'm not the only one who understands this.
That might be true, but you need to demonstrate a difference between correlation and causation and eliminate other factors. Does the low density you mention tend to happen in well established realm that go out of their way to avoid any risk and have basically been playing sim city for a good amount of time?
There is a definite problem in that knights in theory increase the productivity of a region and the benefits to a realm, but do nothing to provide much incentive to a Lord. I don't think fixing this is actually going to achieve much, since it assumes there is a supply of knights that aren't being utilised due to Lords actively trying not to gain them. A realm requires as many nobles as possible (active hopefully) to increase the total gold produced as well as for the theoretical advantages to the military aspect. A Lord character may or may not care about the "greater good" and thus further incentives would in a perfect game world provide more space for knights.
