As a hypothesis go, it’s worth stating, but only since it leads directly to a conservation-of-mass problem and is therefore disproved by contradiction, a problem that Tenet does not encounter (it has its own problems of course, most obviously causality issues from the conflation of pataphysical outcomes with thermodynamic constraints).

Therefore neither are the original Riker, which was evidently terminated in the most horrifying fashion the first time it stepped into a transporter beam.