Very true. UK, U of L, and many other schools in the state produce solid devs. And you're right a lot of the better grads leave for better jobs. But I wouldn't agree that there are no "good" jobs here. The salary is lower, but you probably come out ahead in CoL terms. There have been some startups doing well recently in Lexington and from what I understand Louisville is only doing better. The place I work, Badger Technologies, is doing some pretty awesome things and has some open positions.
This article in the Herald Leader explains and give some numbers to what you're saying https://www.kentucky.com/news/business/article181564581.html Supposedly some of the reason the group was pushed by some larger employers in the area that were hearing potential employees were turning down offers because if the job didn't turn out well in the long run there weren't many alternatives.