IMHO, i think that, being an artisan command, a clear message in the terminal (just like when you try to run migrations in production enviroments) which warns you that many of your blade files, controllers, and most of all "routes/web.php" file (I don't remember if "routes/api.php" is touched too) are going to be overwritten, would save hours/days of restoring what could have already been customized on the project.

My opinion: I don't believe that this line in the docs

"These kits automatically scaffold your application with the routes, controllers, and views"

is clear and "protective" enough to prevent huge damages to the code.