Another key takeaway from this that I hadn't considered before:
Augments aren't just banned from Starfleet. They can't become doctors either. Speaking as a Jew my people know firsthand that one of the best ways to create an underclass is to restrict the occupations available to them. Are augments systematically kept out of skilled professions, denied the chance to better themselves and their fellow sapients? Very disturbing possiblity.
And all because some poor schmuck at an early radio lab had a candy bar in their pocket that got melted.