I was wondering if anyone else has noticed the price to rearm your troops?

I was retrained a unit Luece Epos and it cost me about 2/3 of their price new. The next turn, all that changed was they received a bronze shield for the armor increase. I think it added one point to my defense stat. I don't remember what the cost was in Vanilla, but for 2/3, I woul rather just buy a new unit and leave the first to garrison or something.

Was this just overlooked in EB, or was it intentional? (I have come to realize there was very little that was "overlooked")