My dipshit contractor did something similar.
Me, before demo on a big remodel: "Hey, if you could get rid of these soffits, (on the first floor, with a lot of weight above them) that would be cool."
Them: " Yeah, after we get it open we'll take a look and let you know."
I swing by a couple days later and this is how they rerouted things that were in the soffits, without saying anything to me.
So anyway, I'm in litigation now.
Meanwhile, my wife enables my executive dysfunction, saying things like "oh, just do it tomorrow." I have to explain to her, if I don't do it now, it won't get done for a month. Saying it out loud like that seems to give me the motivation to do it now.