I guess my analogy is being scrutinized (so to speak), that being said; YES!, that WILL happen if the carpenter doesn't know any better (or is a crook).
A smart/savvy (or whatever you want to call it) carpenter will easily do the modification[S] without tearing down the entire kitchen. Just like you can drop React into an existing project.
Carpenter: Welp, we are gonna have to demolish the whole kitchen. So with the estimate of a full kitchen remodel you are looking at $80k
Client: ...