I've heard that a recent tax law court opinion could allow me to get a bigger return on my non-reimbursed MBA tuition expenses. Should I amend my past returns?

Relevant information:
- I started my MBA in 2015 and finished in 2017.
- Tuition and expenses were not reimbursed by my employer
- I have worked five years in the same field and intend to continue doing so
- the MBA is not a prerequisite for my current job, but the credential will likely benefit my career (as most credentials do)
- in past years, I believe I filed claiming the lifetime learning credit (I'm pretty sure.)