Control pin configuration

Due to part obsolescence challenges, we are required to use an HMC470AL3E step attenuator as a single step attenuator. It was proposed to tie all control pins (V1-V5) together and have one line from an FPGA to control all pins at once (see first image). 

The datasheet does not state that directly shorting all control pins is or is not an acceptable way to control the attenuation value.

We also utilize this part as expected with separate control lines from an FPGA driving each control pin separately (see second image).

Will the proposed solution of directly shorting all V# control pins together cause unexpected attenuation (i.e. something other than either pass-through attenuation or full 31dB attenuation based on the digital state of the single control pin, HIGH/LOW), or will it function the same as if each control line is controlled independently with individual line noise suppression as shown in the second image (assume all control lines are set HIGH or LOW together)?