Interesting finding. Just some thoughs: I have to disagree on the "the experience with input() in IDLE is more useful and less confusing, especially to beginners" part.

Here are some reasons:

1. If a beginner starts with threading and expect a concurrent execution the confusion will be high if there is non in IDLE => implicitly changes of the runtime behavior siliencly enforced by an IDE can lead to misconcepts.

2. It took me (and my team) more than one hour to track a strange issue down to this IDLE related behavior - mainly because I assumed that IDLE would not change the runtime behavior of a program in that way => the deviation in behavior can even confuse experienced developers.

3. During my search I came across several reports of similar issues and most people were told to simply quit IDLE => "quirks" have impact on the reputation.

Personally I like and mainly use IDLE and would like to continue with it.