Dart understands that sometimes you just don’t feel like appeasing a ceremonial type checker.
Because it's not like improper use of types or conversion between types isn't a primary source of bugs, right?
Organize your project’s files and contents the way you want to.
And if the next guy has to wade through KLOC to find a routine, that's just his problem, right? Organization is for the anal.
I can see where skipping the compile might be attractive if you are stuck with Notepad as your IDE. And, the performance penalty is small unless your source gets really big. (After all, we aren't using Apple ]['s anymore.) But most of the "features" he highlights seem to be a sop to the lazy or impatient. Skip all the planning and design! Run your half-baked idea NOW!
If I'm reading a job posting, I'm stopping as soon as I get to "Dart" or "Go"