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Mapping of CCDC11-0 inputs to H3A inputs

I just want to clarify some information.

On our board, a in image sensor data bits 11-0 are connected to CCDC input bits 11 - 0. Seems like the data comes out CCDC controller properly formatted. GAMMAWD[4-2] register defines how the data will be output if A-law is used and is set to 2 (take bits 11-2 for 10bit output).

H3A at the same time requires requires 10 bits of data. According to a diagram of the CCDC controller , the same GAMMAWD controls the 10-bit conversion for the H3A input. In this case, the data for H3A will also be properly formatted, right?

We are not using the SPI2 module and we could change the design and move the sensor data but 2 bits higher on the CCDC input. But is it really necessary? Are there any downside effects to having it connected to pins 11-0 vs. 13-2? 

Thank you.