[Question] `arborist.loadActual()` can be used with `ignoreMissing` ?

[wassim-ben-amor]

Hello,
I have a question regarding the standard usage of npm-packlist.
In the readme this example is mentioned:

...
const arborist = new Arborist({ path: packageDir })
arborist.loadActual().then((tree) => {
  packlist(tree)
...

For a monorepo using pnpm and ^workspace protocol, the operation of finding missing edges (using loadActual without specifying ignoreMissing set to true) can take a lot of time. I guess it's because of pnpm symlinks where loadActual will try to scan a lot of node_modules. My goal is only to pack the package as it is without further changes.
My question: What is the impact of changing ignoreMissing to true ?
Thank you,