There is no such thing as 'original flat look' for RAW files. BMD Film (as well as Rec.709 and P3 D60), which you can apply via 'CinemaDNG Codec Settings' in DaVinci Resolve, is a LUT.
Yes, you currently have even less control in PrPro CC, which is limited to Rec.709 LUT pre-applied on importing. The only way to get full access to RAW settings in Adobe realm now is to import a footage into After Effects or Photoshop first, where you can tweak Camera RAW settings.