I found this article asking Why is the Microsoft Dynamics NAV team hiding from Power BI? to be interesting. The GP team certainly embraced PowerBI at Convergence and I seem to recall seeing things about PowerBI from the AX and NAV teams. It’s not exactly GP related but it is an interesting contrast to what we saw from the GP team.
Why is the Microsoft Dynamics NAV team hiding from Power BI? | MSDynamicsWorld.com
Reporting & BIMicrosoft & the GP Ecosystem
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.