The argument for extending copyright beyond fourteen years was that some works of art take time to be recognised and build a following - which seems fair enough.

But the opposite argument needs to be made for works with faster returns. Half that (7 years) should be plenty for software.

Culture moves so fast now, but copyright terms have gotten longer. A movie gets judged as a failure on a single weekend of revenue, but copyright law claims that it wouldn't be made without a 120 year monopoly!