Maybe it was meant to be like that? i did the same - when i was, what, 6? just put more in.
maybe the creators thought "hey, some stupid people will think just ONE person fits into the one-man research facilities. let's make it so you can put loads in!!!"
but, then again, isnt that a little nerdy sounding? not to be stereotypical, but when they thought that up, they looked like this:
