I think you may have left your "Caps Lock" switched on.
I believe you will find the bond is what I have already described it as. It isn't a loan, although you may need to enter into a loan agreement in order to secure the money for it. It is intended to cover your training costs in the event that it is not picked up by a potential employer at the end of the course. The bond can be provided by any monetary vehicle (such as your savings, or somebody elses savings) not simply a loan.
I am not confused by the term, although you seem to be. I cannot see that there is any guarantee specified, nor would it seem intended to confuse anybody with sufficient wit to read it.
It is a commercial agreement with attendant risks, but it comes with some limited safeguards and the possibility of some beneficial prospect. The benefits and drawbacks should properly be weighed up against what else is available in the marketplace, and any decision should rely on careful and studied research.