To reply to your original question.
If you need POI orbit, follow me, and waypoints then yes, you did buy the wrong platform. The Inspire may get these features in the future but when, no one knows.
I suggest that if you are serious about aerial cinematography you invest in a DJI S900, A2, LightBridge, Zenmuse GH4 gimbal, Panasonic GH4, and the Groundstation. This will get you everything you need (apart from follow me which is in my opinion a stupid gimmick and of no value in the real world) and the image quality of your video will be vastly superior to the Inspire.
Very few people base their business on the Inspire. It's great as a filler craft for tight jobs or where having $20k in the air isn't feasible, but if you are serious you should be flying a proper pro platform. The Inspire is great for what it is, but it's not the be-all and end-all of aerial platforms.