UPDATE:
The offer (comped mini-suite, Princess Plus and $1500 free play) finally showed up in my listings on 7/10/23. However, when I tried to use it, it would not apply to any cruise. Apparently there was some "glitch" that wouldn't let the offer be used and it needed to be "further escalated", which the Navigator promised to do. To be honest, I wasn't holding my breath, but this time, the wheels turned swiftly.
On 7/12/23 I received a phone call from Ian, one of the Navigators in the Casino booking department, saying they had straightened out the issue and could book the cruise for me (with all the perks) immediately, which was done. VERY impressed and thankful for the excellent customer service shown by Princess casino booking staff for their resolution to the problem.