The problem with Polish MIGs was deferring the decisions entirely into US hands and exposing all talk and no will, at least when no profits are to be made by US arms manufacturers /1. All of a sudden something "obvious and imminent" became "complicated and untenable".

/1 Of the declared $800mil Anti armor launchers account for ~$400mil, then the other $400mil pays for some small arms, personal armor, ammo and 100 drones? Its pure mil complex walfare program.