SharePoint Framework: ".bundle.js" part missing from asset file name - is this ok?

I upgraded an old SPFx project from version 1.0.0 to 1.2.0 (most core libs in "package.json"). With this update the schema of the "config.json" changed. One of the changes is concerning me.

Previously, for components of the SPFx solution, you could specify the outputPath like this in "config.json":

"entries": [
  {
    "entry": "...",
    "manifest": "...",
    "outputPath": "./dist/hello-world.bundle.js"
  }   ],

Now the schema version 2.0 changed this to:

"bundles": {
    "hello-world": {
        "components": [
            {
                "entrypoint": "...",
                "manifest": "..."
            }
        ]
    }
},

Notice the missing ".bundle" part in the newer version? In fact, the output file name is not specified at all.

Here's the file the old schema version produced:

hello-world.bundle.js

And here's the new version:

hello-world.js (The '.bundle' part is missing.)

My question: is this intentional? Is this correct? Since deep in the SPFx libs there is still code checking for '.bundle' e.g. to change the color of those files in the console to green when serving from the local workbench.

Since in SPFx sometimes is magic involved depending on those special file endings (like with ".module.scss" files) I'm courious if I'm in for future problems.