This is why I harp that there is only two views of scripture. The Reformers didn't really leave. They simply put things back the way they were. The Catholic Church, otoh, left the Reformers.
I will say that the Thubingen divines, to my recollection, never raised that point with the EP, though.
If by the "Thubingen divines" you mean Orthodox, I can understand why they would never raise the point; it was simply outside of their paradigm. The Reformed view that fester in the western church was a co-equal doctrine along with the Orthodox synergistic view. I think history shows the Reformed view was actually the premier western doctrine but slowly, and gradually over time, lost its importance. Both views were tolerated for 1500 years until the pressure became too great.
But for the Orthodox there was never a Reformed view. When the Reformation finally happened, to the east this looked like a completely new view simply because it was never taught in the Orthodox church.
"If by the "Thubingen divines" you mean Orthodox"
No, they were the Lutheran theologians who were exchanging letters with the Patriarch of Constantinople (EP.)
"If by the "Thubingen divines" you mean Orthodox, I can understand why they would never raise the point; it was simply outside of their paradigm."
Nope. They were the next generation of Lutheran theologians after Luther. The letter exchange is worth reading.