It tickles me that reducing this roundtrip time is the solution rather than having a more, I don't know the right word here, intuitive (?) language and/or API to begin with.
I think it would be really cool to be able to see how others (publicly or privately) use certain APIs. I think it would help with faster adoption and "crowdsourcing" documentation. I can't tell you how many times I have had to Google/Stack Overflow Spring (and other library) specific things because I just wasn't sure if it could be used in a certain context based on the documentation present in an IDE or the project's documentation.
Tickling aside, anything that removes humans from the process looks good to me.
Sometimes people need to maintain systems that have generated millions in revenue even if they use APIs that suck, or languages that you might not find intuitive.