One part I noted is she mentioned the destruction of the temple, would not a good counter be the verse in Jeremiah that mentions that the covenant will now be written in their hearts?
Good point! The "Law"/Covenant that was kept in the Holy of Holies, which was destroyed, will put it into the Jews' hearts by the rabbis.
Perhaps Deut. 30:14 was implying that when the Temple is destroyed, the Covenant [that was in the Temple and by implication 'remote'] will no longer be hidden from you and distant (Deut.30:11), but will be written on your hearts.
This would solve the 'new covenant-not-like-'Sinai'-covenant' prophecy in Jeremiah because it will be written/inscribed/cut into our hearts, which is not like the way the Covenant that is/was lying 'remotely' in the Holy of Holies, which was inscribed on stone/cloth/leather/paper.
This implies that the Temple was a crutch/fetish that had to be destroyed so a 'new' way of inscribing the Covenant could take hold- and it wouldn't surprise me if the Pharisees were conscious of this task and finished the transcription (from stone to heart) just in time. ("Give me Yavneh and its sages, [not Jerusalem and its stone]").
Is this what you meant?