Yes, you are correct. But this problem goes all the way back to +Lefebvre and the SSPX, even before +Sanborn. Basically it comes from this warped notion that anything that happened prior to some magical day in 1962 was perfectly orthodox and Catholic. +Lefebvre was taught his religious indifferentist ideas in seminary, but since that was pre-V2 seminary then it MUST have been orthodox. Then when +Lefebvre said it, then how can anyone question anything said by +Lefebvre as modernist?
It's basically how BoD picked up steam in the first place. St. Augustine speculated about it. St. Augustine had a lot of zealous followers during the scholastic era. St. Thomas picked up on it ... from Augustine, and then it went "viral" as it were because of the authority of St. Thomas. Of course, little did they know that St. Augustine had retracted the idea very forcefully.
So true. Arguably, it could be said it goes back to the 17th century with the worldly Jesuits that began chipping away at the EENS dogma. History explains their ambition to appeal to non Catholics in high places caused this.
In regards to the denial of EENS, the real center point of BoD, a red herring IMO, also could be argued exists today because the Church did not take a side in the Thomist vs. Molinist issue.
I firmly believe God allowed this for this reason. As you already know, if we take Thomism to far we end up with Calvinism. If we take Molinism to far we end up with Pelagianism. Now in order for the devil to deceive as we know will happen (he will be unchained into destruction) there must be a deception. Would people be deceived via Calvinism which claims God predestines to hell? Or that because of original sin man lost his free will? I think not. Can the devil deceive via Molinism? Absolutely. With mans propensity to sentimentalism, the crack in the door for the devil is through the Church allowing Molinism to be a position that could be held on the surface
, but in reality isn't. This IMO, is why the world is more Pelagian today then in the 4th century.