It's just an expression of opinion. In the current state, it is difficult for Poland to adopt and produce kf-21. Why? Because they have already decided to replace the old SU-22 and MIG-29 with the F-35 and FA-50. Other than that, it's F-16C. It's very hard to get in here.
However, I think such remarks are made because Poland has an opportunity to participate in the development of Block 2 and 3.
Poland has already declared all-round defense cooperation with Korea and is considered to have gone beyond the relationship between sellers and customers.
Perhaps those interviews will continue afterwards. However, since it is a long-term cooperation, short-term results will not be achieved. But it's nice to hear that. HA HA.