Honestly, fair roast.
Watching the announcement video for this again, I think I was a bit harsh. The visuals (particularly the effects) are actually pretty slick. I think what took me out of it was the dialogue/acting, which felt forced/a bit corporate. I rewatched the 2019 reveal video, which has no dialogue, and felt like that overall played better (and featured an actual "appearance" from the Ghostbusters) despite the lack of more extensive VFX this bit offers. It's really the out-of-nowhere ending moment that sucks all the tension out of it for me.
At the end of the day, though - and to your point - what matters most is the actual event. I do think this house has a ton of potential, and I'm really looking forward to it.