I compared our Founder's education to what is being taught today at Harvard. The same education to what they had is today equal to getting a sub-speciality PhD in philosophy called "philology," however without the moral philosophy capstone.
Our Founders were so well educated that half of them could have been addressed as "Dr."
The colonial colleges' goal was to give good preachers and good judges to the colonies. They preferred the Scottish moral philosophy which was beyond excellent. They were taught to understand themselves in relation to God. And being able to understand themselves correctly they could then go on and preach or judge rightly.
So, the correct question should be, "Why can't today's educators duplicate what was taught to our Founders?"
I dunno. I think your question was a good question for 20 years ago or so. Today the cow has been gone so long the barn has collapsed.