Unfortunately its configuration, even if successful, is wholly impractical to scale up to a commercial aircraft.
Being able to generate a softer thump with a needle-like aircraft is technically interesting but practically irrelevant.
The SSBD program had more potential, playing around with more capacious configurations that could possibly have been expanded upon:
https://www.airliners.net/photo/NASA/Northrop-Grumman-F-5E-S...