There are many good build tools, and the kotlin compiler shouldn’t inhibit teams picking the one that’s best for their context

It’s too hard to support all the build tools. Because it’s not only a problem of build tool, but also integration of build tool with Idea

The command-line compiler gives you that. Most build tools are already designed to work with command line tools. But the kotlinc commands are not kept up to date and lack features that have been added to Gradle and IntelliJ.

The command-line compiler gives you that.

How? Of course you can run command line tool from build tool, but Idea must support also project structure of this build tool