> We moved the Groovy project to the Apache Foundation as a message to the community to say that the community and ecosystem matter the most

You moved it to Apache because all the three staff working on Groovy were retrenched from Pivotal,Inc.

> we started to support Android. even large companies like the New York Times started to use Groovy to build their Android mobile apps

You're mixing up the functions of Groovy for build scripts in Gradle and as a systems languages targeting Android.