I think your concern is valid, but I think it's the general case with any powerful tool: it can be abused, or shoot you in the foot, and requires discipline to apply.
I don't have REPL-driven development experience, but I think we are all familiar with StackOverflow. This is a great, great resource, but it lead scores of programmers to the "style" of development, where they mindlessly copy solutions from SO, without understanding of how and why they work.
I guess one can extend the old maxim "there is not now, nor ever will be a programming language that makes it easier to write a good program than a bad one"...
I don't have REPL-driven development experience, but I think we are all familiar with StackOverflow. This is a great, great resource, but it lead scores of programmers to the "style" of development, where they mindlessly copy solutions from SO, without understanding of how and why they work.
I guess one can extend the old maxim "there is not now, nor ever will be a programming language that makes it easier to write a good program than a bad one"...
(edited grammar)