The inherent fairness is in meritocracy. An American who is fast enough for a scholarship gets one. An American who isn't fast enough won't get one. An athlete who gets a scholarship does so because the school offering it believes that the athlete has something to offer the school. If foreign athletes who are slower than Americans were getting scholarships and faster Americans weren't then it may be unfair but that isn't the case here.
And you seem to have an idea that somehow a US college coach has it in his/her job description to develop athletes in a way that improves our international competitiveness. None do. They're hired to give their school the best possible team they can.
Similarly, some NFL coaches have complained for some time now that it's hard to find quarterbacks who are prepared to play the position in the NFL because so many college football teams are using the spread offense as if it's some sort of failure on the part of college football coaches who instead should be developing quarterbacks for the NFL. But no college coach is hired to do that. Like college cross country and track coaches, their job is to have as successful a college team as possible. What comes next is someone else's job.
As something of an aside, I just had a look at that EKU roster and think it could be a very cool team to run for. I undertand that those foreign athletes were not brought in to expose the US runners to a wider spectrum of students, but that's going to happen anyway.
But why are you complaining about this here? Even if everyone on the board agreed with you nothing at EKU would change. Why aren't you complaining to their cross country coach, AD, President, etc.?