Why can't "Requester" users see the Request Status?
Requestors do not have the ability to see any information related to other requests. They do have the ability to see approvers who they may contact to follow up on any future requests and cancel them if need be. The appliance does not divulge to requestors who currently has a password nor who may have a password at a future date. This is a security feature.
End users would need to contact an approver who has the ability to see requests and deny them if need be. Decision is not made at the requestor level it is made at the approver level.