So what exactly what were these guys doing before they suddenly decided to do bedsheet deformation, nothing? You don't have a team just sitting there doing nothing waiting for an opportunity to use their particular set of skills that apply nowhere else in the game except bedsheet deformation. I am sure they were working on something before they decided to go in this direction.
"I am sure they were working on something before they decided to go in this direction"
And ? For sure he was working on another task before this one. A task now done as he's assigned to another..
This guy was doing stuff for SQ42 and as SQ42 approach the beta stage, perhaps all tasks in his domain of expertise are in a "completed" status. Bedsheet deformation could have been assigned to him because no other task is available for him while SQ42 is still perhaps 1 year from release.
So CIG can give ressource to a small scope tech with him (because bedsheet is really a small scope, you don't have bedsheet awaiting to be deformed every 10 meters).
You know, whole teams of experts can have nothing more to do in a beta once all tasks they were assigned to are done and stable and all remaining tasks are outside of their expertise. In big studios, you switch those teams on other projects. For CIG, they only have 2 projects and SQ42 has priority over SC. When you build a house, once you start to paint the wall, the mason have nothing left to do, so letting him work on some small tasks like a concrete fence is just ressource managment. The other way is to end his contract.
I'm almost sure that the planet tech team has nothing more to do for SQ42, but this team have a lot to do for SC. You suggest the guy working now on bedsheet deformation should be working on something else

while knowing nothing about the state of SQ42 and nothing about his expertise
