I don’t use dual ESCs and don’t recommend them, so I am not sure about the Unity.
My setups that use one radio receiver per motor seem safer to me after extensive use with and without the additional receiver. But I don’t want to get flamed on here…
I still build with dual receivers, if that’s any indication to you.
But I don’t even know if that’s possible with Unity anyway. Or with a Flipsky remote. I don’t use those.