It's a shame you got downvoted. It's clear you thought this through further than the people who downvoted you.
For anyone who didn't get it: You have to actually spell out what you want before you can say if it fits this answer or not. The car vs bike thing only makes sense if you didn't care how fast you got there, how tired you were when you arrived, or how much pain it was to haul the luggage there.
The answer to original question is easy in that light: Because IDEs aren't the only solution to the problem. Just because IDEs have a certain feature is no reason that other things can't have that feature as well.
For anyone who didn't get it: You have to actually spell out what you want before you can say if it fits this answer or not. The car vs bike thing only makes sense if you didn't care how fast you got there, how tired you were when you arrived, or how much pain it was to haul the luggage there.
The answer to original question is easy in that light: Because IDEs aren't the only solution to the problem. Just because IDEs have a certain feature is no reason that other things can't have that feature as well.