Seriously haven't we seen how this play-out way too many times already?
There is absolutely no incentive for Apple and Google to make sure ReactNative controlled by Facebook is the way to develop apps for their platforms. Till that is true, its absolutely nuts for any company other than facebook to develop their apps in ReactNative.
Edit: Example: https://softwareengineeringdaily.com/2018/09/24/show-summary...