I'm also an early gsuite user and have the same complaints about assistant integration - but I am 85% sure that I tried to create a new google for business account to verify that it would at least work if I was paying, and it didn't.

Which led me to experimenting with migrating off my legacy gsuite, and with the API rate limiting, it seems it would take upwards of 30 days. I can download that data in 10 minutes if it's unhindered.