Posts deleted by Community as a result of getting enough spam flags will be locked.
Posts deleted by a moderator are in the same state as if 3 10K+ users had voted to delete. In that case the OP can undelete with a single click too.
If it's spam perhaps moderators need to remember to flag it as spam rather than just deleting. As moderator votes are instantaneous this is the same as if 6 ordinary users had flagged as spam so the Community user steps in and deletes and locks the post.
I haven't checked whether the user gets a 100 point spam hit as well as I've only ever done it for 1 point unregistered users.