I agree with the commentary. The National Popular Vote Compact is abominating to liberty.
In our system each of the states is a sovereignty that represents (and answers) to the political interests of the people in it. The NPVC would — like the 17th Amendment — help dissolve the states as participants in the federal union. People within the sates would become disenfranchised.
To illustrate: Under the existing constitutional system, a Virginian’s vote is recorded and counted as cast. Under NPVC, some Virginians’ votes would be recorded then, in effect, changed. Hard to find liberty in that.