First, there is a Feature Requests forum specifically for requests/wishlist items like this.
Second, there is already a thread requesting usage of the SD card for storage of profiles.
And, lastly, the OSSC currently only uses the SD card for firmware updates. Once the firmware is updated, the SD card is no longer utilized, and profiles are stored on the OSSC itself (The FPGA has a little bit of storage, I think?), so no profiles are ever saved back to the SD card.