I believe the little plastic cup is intended to keep odds and ends accounted for when doing maintenance. Which is very odd, since no part of the gun save the locking block will fit in that 'lil cup. I use mine as a thumbtack holder on my desk.
No, as stated above - its just to keep the case from being crushed. They've been putting those in the cases for years. Stoeger (which Beretta owns) does it too).
I let my son have one to play in the sand with