SDK 7.0.1 is intended for version 2 (G0) chips, and the future. So it can't be used with earlier versions of the chips (like C0). So it shouldn't have workarounds for C0 chips.
According to nRF51822 PAN V2.4 , PAN #9 dealing with OUTINIT is not an issue in G0 chips.
In header file nrf_gpiote.h inline function nrf_gpiote_task_config(...) still has workaround code for this PAN.
Will this workaround code cause problems on the G0 chips?