Clearly they also saw the benefits of keeping it to Apples platforms, but that doesn’t remove the technical limitations, at least, early on.
Like I said, I don’t know if those limitations still exist. Clearly, the profit motive would if it weren’t for all of the legal and regulatory liabilities that exist abroad. This is why I suggested in another comment that purchasing and integrating this compatibility layer would be a good workaround for them in that regard.