I addressed this recently in this forum post.
An new exporter that doesn't solve the issues it set out to solve? Perfect execution, no notes.
You didn't address it. You ignored it and - somewhat insanely - expect game developers to deal with whatever a user has installed on their system, which is a sadly unsurprising lack of judgement when it comes to how game development works.
And while I'm at it, NW.js works fine on Linux. Sorry you can't get your own engine working on the platform when its users are able to without issue, but switching to a new wrapper supported by one developer vs one supported by thousands of experienced developers is laughable no-go.