It's a stupid argument, it doesn't make it the better version when its dropping more frames. VRR to the rescue!
have you ever played on a screen with VRR/Freesync/G-Sync?
if you have you should know that YES it makes it better.
both versions run between 100 and 120 fps, if your system drops to, let's say 110fps on a non VRR screen, you will have very obvious stutter and in the case of this game tearing.
if your system drops to 100fps on a VRR screen, the drop will be way less noticeable and tearing is gone.
so dropping to 100fps using VRR feels not as bad as dropping to only 110fps using a non VRR setup (and again added tearing with every single drop is also gone with VRR)
so again, yes it is better on Series X should you have an HDMI2.1 screen with VRR support or an HDMI2.0 screen with freesync.