Why wouldn't they grow? Once a junior has good technical skills they can start worrying about user concerns and therefore grow in other areas. I see no reason why this would limit them in any way.
I think any non-trivial task is going to surface technical limitations which might feed back into the stakeholder decision making process.
A junior might be alienated if they are outside that process, but if they approach it with a problem-solving mindset they'll likely have a more intimate knowledge of the closed loop.
