A DEO candidate can't expect a reimbursement for university they already have completed. As a DEOer myself, I can say (knowing a few RMC grads) that I had a 'different' university experience. Much more sleeping in and a lot less stress for me. RMC isn't a walk in the park and in my opinion they earn every coin they make/free education they are given. Being an Ocdt for 4 to 5 years can't be easy (as opposed to those of us who are commissioned upon completion of BOTP).
Anyone that wants a 'civie' university experience combined with a military experience (and take advantage of reimbursements), ROTP civie U is an option or you can do what I did and join the reserves and when you are done university, transfer over to the regs. Reservists make much more now than they used to and they have a reimbursement program (50% up to $2000).
In the end, how many jobs are out there that would pay you back for university you have already completed? I'm thinking zero, why should the military be different? The military is offering great things these days (pay, leave, travel, training, etc) and as a previous post states, you can't go into the process thinking the military owes you something. Once you are in and you perform at a high level, you will be rewarded accordingly. Enrolment bonuses for tech trades/engineers/MOs are a different matter altogether and for those professions are deserved as they are trying to fill a serious gap, as the military has to be competitive with the private industry.