implicit function naming quirk?

why.js

// file1a.js
const CoolName = () => 'cool'
export { CoolName }

// file2a.js
import { CoolName } from './file1a'

console.log(CoolName.name) // -> "CoolName"

/**
 * implicit function names derived from variable assignment, nice ok cool cool
 *
 * but wait ----------------------------------------------------------------------
 */

// file1b.js
export const CoolName = () => 'cool'

// file2b.js
import { CoolName } from './file1b'

console.log(CoolName.name) // -> undefined

/**
 * WHYYYYYY
 */