It's expected. In general as a dynamic language like JavaScript, it is not possible to identify exactly where all properties are consistently used and automatically update them. You can use a text-based find-and-replace but you should review every match to make sure it doesn't update something incorrectly.
One of the benefits of Construct's object model is it can rename things for you automatically and exactly (except where string "by name" references are used). TypeScript also uses static typing and tools like VS Code can use "Rename symbol" which should help.