We worked with SAP on a tech talk about Graph, you can watch it over here: https://events.sap.com/teched/en/session/51579
Keeping in mind you are 45 strong company setup, is your shop seriously getting onboard with this?
And sell own apps within SAP customer base using these APIs?
Building your stuff is one piece. Really, to sell it within SAP customer base, is battle in itself. Unless you are Accenture, Capgemini, IBM etc.
So even if Graph makes some improvement on technology front, why would a smaller scale shop be willing to build anything if they can’t tap easily into that customer base.