Amortization is bad policy when it comes software. Software is inherently high risk. Every piece of software is unique and does not guarantee steady income over 5 years. Most startups won't survive 5 years to fully realize the deductions. This is the end of US software dominance.
What is that? Software sold by companies that have HQ in the US? Or software created by someone in the US? Because if it is only the first, good riddance.