Hey there, @sisterfister87! We understand your concern, but unfortunately not all the phone models can be brought to Boost Mobile, including the Moto G7. Sorry to let you know that.
This is seriously becoming an issue and it is not Motorola's fault. Sprint and Boost use the same towers so the phones technically should work on Boost if they work on Sprint. Sprint for some reason, doesn't want these phones to work on Boost.