I'm going to watch that talk later it sounds interesting. Thanks for sharing.

This may be addressed in the talk but my immediate reaction is that a truly mastercrafted tool should be both. I tend to agree that where you have to make choices lean towards long term (thats what I personally prefer at least). I think I've sometimes romanticized that attitude a little bit though and reveled in complexity for the sake of complexity.

Ideally you're building stuff thats easy to learn but takes a lifetime to master (because of depth of the field, hopefully not because of the unnecessary complexity of the tool.)