I don't like people just trashing the mods who don't even have much of a say in this, and I recognize that variety is needed, but also these settings are just bad.
As has been pointed out, high-speed worlds are less common than low-speeds. I personally have been waiting for a high-speed revolt world with no morale (preferably WW) for... About 2 years, I think. The last world I took interest in was EN129. I've been forced to settle for a 3/2 with morale and it's agonizingly slow and morale makes would-be trivial attacks unexpectedly costly for no good reason.
I think a return of community polls for worlds would be a good idea. That way, people get what they want and we don't get (as many) EN141s while still having a justifiable answer as to why there are no low-speed worlds. I may not get my revolt world, since conquest is far more popular, but we would get worlds where I can send attacks further than same-island and have it land within a week.