''I'm surprised nobody was seen picking them up; it's a wonder they weren't accidentally stepped on.
I should hope that Kirk and the others carefully gathered up all the crew and put them away somewhere in a closet or box where they'd be safe from being broken. And of course, I'd hope they were set back in a big enough space when they were restored to human form.''
Do you really expect senior officers like KirkSpockandMcCoy who are joined at the hip to menially take time to pick up disembodied crewmen from the floor? That's a yeoman's job, and at that moment all the yeomans were converted to coke blocks, or worse. So let's have Scotty do it. He's not top-billed, he won't mind.
More seriously, Rojan wouldn't allow Kirk to stow them away. He wouldn't be so stupid as to walk into one (nor would Kirk, Spock or the Kelvans), but if Kirk tried anything else, there's 430 more cessated hostages available if needed. It's rather like being transformed without materializing, when one thinks about it. Wonder whether the Kelvans tested their devices on anyone or anything in the past.
Big spaces for crew restoration shouldn't be a problem if a few are restored at a time. I'm curious whether Kelvan paralyzers or body-erasers have limits in proximity or number of subjects at a time. Since Shea was brought back in the exact same position after basically being thrown upside-down onto the ground as coke, then safe restoration should be easy. But, there's just one more thing.......Chekov and Uhura were wiped from existence while sitting upon their chairs, so having then restored in ANOTHER non-bridge location could lead to the funniest fourth-act conclusion since the all-time yukathon GAILIEO SEVEN. You think?