It's just particularly egregious in Alter Ego. Tuvok dematerializes first -- THEN we get a scene where Chakotay screams "Shields down to 47%!" -- and THEN we see Tuvok rematerialize on the space station. It's literally *while* he's in the transporter beam that we are obnoxiously bludgeoned with dialog explaining they're breaking the shields beaming rule. It's a real slap in the face.
Who said anything about science fiction or plausibility? VOY was the first Star Trek series to be science fantasy. What's the difference between science fiction and science fantasy? One follows a logical system of rules while the other does not.