Ludei have 17 people: http://ludei.com/about/team
We have 3: https://www.scirra.com/people
As far as I know, both companies are 100% busy all the time. It's simply impossible that 3 of us could take on the extra work done by a larger team, either for a native exporter or another HTML5 wrapper like CocoonJS.
We plan to improve CocoonJS support over the next couple of releases, so hopefully things will get even better. We know there's a few issues like missing documentation on using IAP and such, but hopefully we can get it all sorted soon and then CocoonJS will be an easy and robust way to publish mobile games.