How did the Electoral College help to overcome the delegates' concerns about uninformed voters?

The American electoral system is of the indirect type, where the popular vote does not determine the President of the United States, but he is elected by the Electoral College, whose electors are determined by the citizenship of each State.

Thus, this system implies that the President is always elected by a group of qualified and specialized voters, who will not elect the President randomly but based on real political convictions and on a full understanding and knowledge of the proposals of each candidate, avoiding that voters without information or knowledge are those who carry out this task.