It’s mentioned in the article: soft landing is much more comfortable for people, allows carrying animal and plant specimens back to earth, and can land close to

It’s mentioned in the article: soft landing is much more comfortable for people, allows carrying animal and plant specimens back to earth, and can land close to actual facilities instead of kilometers out in the ocean. The booster would be used anyway to send cargo to the ISS, you just need a bit more fuel for the added spacecraft weight.