I believe they are referring to this release, which does include Shadowbringers:

https://www.amazon.com/Final-Fantasy-XIV-Online-Complete-PlayStation/dp/B07SLGCNXC/ref=mp_s_a_1_3?keywords=ffxiv+complete+edition&qid=1561058036&s=gateway&sprefix=ffxiv+c&sr=8-3