Unfortunately you can complain about things in the game that you don't like or aren't working as expected but there is nothing that will change anymore. All updates for the game has been stopped so nothing will be modified or fixed. But like the med-kits, they aren't broken in the first place. You just can't use them one after the other, as is the same for dropping med-box and then cancel it to receive med-boost. And there were good reasons why they changed this with an update (one of the last ones).