The Christian who believes that God has middle knowledge is typically concerned to secure the belief that God is Sovereign in the sense that nothing whatever is out of God’s providential control and direction. God ordains what we will freely do, according to the Molinist, without determining it, and this seems to preserve a special view of God’s sovereignty.
However, if God has middle knowledge, and if the Molinist-type counterfactuals are out of God’s control and in no way determined by him, then the Molinist has only just pushed the problem back one step, since instead of God allowing men to make free choices which are ‘out of his control’ (he actualizes them weakly, and not strongly, by simply allowing them, rather than causing or determining them), God now allows subjunctive counterfactuals to be true or false independently of what he wills. God, according to the Molinist view, is just dealt the hand he is dealt of counterfactual conditionals. So, it seems that the Molinist does no better, because the world is still, in some degree, out of God’s control.
What is more, not only are Molinist-type counterfactuals violations of the PSR if they are ungrounded, but the PSR is also violated, even if they are grounded, if there is no sufficient reason why those Molinist-type counterfactuals which are true, are true, and those which are false, false.