My rationale was because it is at the NDK level. So you’re still going to need a UIKit, networking, etc. On Android this is a Java stack. As an iOS developer myself (author of some popular OS libs like:
https://github.com/appsquickly/Typhoon/) I found it very easy to pick up Kotlin and use this with the Android ecosystem.
If I was going to use Swift, I’d still need a set of foundation libraries. Maybe that could be Qt. Maybe if
Apportable.com had worked out it could be their clean-house implementation of Foundation, UIKit, etc. . . but it would have to be
something and that would be a different setup than typical android. Therefore a niche.