Supreme Court decisions are to the Constitution as (for most Baptists) Scofield's Notes are to the Bible.
Interesting analogy.
But for the OP - the biggest criticism was that the section of the 3/5 compromise was NOT read (as it is no longer part of the Constitution), however, since it was NOT read, many - both conservative and liberals have complained - stating that Americans should be made aware of that statement.
Here is the scoop - they should have learned of it in High School American History - or are they not teaching it?
20-20 hindsight tells us it is a good thing the Repub's did NOT read the 3/5, as all of America is getting a great education.
Had it been read, not a peep would have been made - other than it was waste of time.
Thank goodness, Congress did read the entire Constitution - and did NOT read about the 3/5