The only piece of marketing I found egregiously baity was the TGA trailer. Everything from the January 'TIIIIFAA!!' trailer and on was a pretty fair representation of what Rebirth actually turned out to be. They showed the CT date in the State of Play and other prominent promo pre-release, and there was some pretty shippy CT stuff in Cloud and Tifa's character countdowns iirc. The CA ending handhold literally plays out the same way it does in the game, so I wouldn't consider it bait on the level of the TGA trailer.
If I was being generous, I would say they edited the TGA trailer the way they did because they were still trying to play the 'Is Aerith going to live this time?' game. With the baity CA scenes, more people may take the song at face value and interpret it as a straightforward romantic ballad rather than the 'goodbye' that it was meant to be. Likewise, if they had edited it to be more ZA, again (timeline bros aside), I think most people would realize her fate would stay the same.
(IMO, it was extremely obvious bait/misdirection since all the baity scenes came from the GS date. The trailer was released with a bunch of press explicitly saying the GS dates were optional. So the fact that all the shippy scenes came from optional moments should have been a huge red flag. Still think it was pretty rude of SE to do them like that, but if you fell for the bait, you have no one to blame but yourself. All the signs were there if you cared to look.)
The cynical part of me would say there's a difference between SE, the storytellers, and SE, the financial entity. I would like to pretend I'm a better person than this, but if I knew there was a small, but vocal part of my fanbase who could subsist on a few out-of-context scenes, mistranslations, ambiguous song lyrics and occasional marketing bait for 27 years despite having one half of their ship kiss a different woman and end up living with and raising two kids with said woman after the game...I would absolutely still take their money. Especially since I could apparently do so without undermining the integrity of the story I wanted to tell.
So I am a bit surprised they've straight up shut down differing interpretations of NPTK this time around. Though maybe they also got sick of seeing 4 years of Hollow discourse, lmao.