I don't think that these kind of safety-rails help or work toward this model your suggesting (which is a great & worthy model), but I'm far more pessimistic about the feasibility of such a model - it's becoming increasingly clear to me that the "always copy paste" scenario is the central default whether we like it or not, in which case I do think the safety rails have a very significant net benefit.
On the more optimistic side, while I think AI will always serve a primarily "just do it for me I don't want to think" use-case, I also think people deeply want to & always will learn (just not via AI). So I don't personally see either AI nor any safety rails around it ever impacting that significantly.
When that happens, AI may be the only way for many people to learn some information.
Limit the scope of available knowledge and you limit the scope of available thought, right? Being more generous, it looks like a common refrain is more like "you can use a different tool" or "nobody is stopping you from reading a book". And of course, yes this is true. But it's about the broader cultural change. People are going to gravitate to the simplest solution, and that is going to be the huge models provided by companies like Google. My argument is that these tools should guide people towards education, not away from it.
We don't want the "always copy paste" scenario surely. We want the model to guide people towards becoming stronger engineers, not weaker ones.