Hi,
I doubt this is a valid argument to choose uNet in my opinion. uNet is for when you can afford a server side headless Unity server, which costs a lot, else you go for Photon without thinking. Else you go for either Photon or Bolt. That's about the only option that is worth mentionning at this point, yes I am affiliated with Photon too, but the comment is nonetheless valid
Transform synchronization are dealt in a very easy way within photo, you simply observe the transform, or if you want to lag compensation, you add a PhotonTransformView and observe that component, it will let you choose compensation option in a very powerful way.
Bye,
Jean