Its the same for the Javlok, Scourge and Ferrox. They originally allowed them to be reload upon throwing, so i ran around throwing it after emptying the magazine which was sweet as hell. But they removed it since it wasn't an "assault rifle" and its not supposed to work like that in conclave (but who cares about conclave).
People including me have posted this on the forums every once in a while and DE has yet to do anything. I went away from warframe for about two ish years, and they still haven't reverted the changes. Its probably because they don't want to copy and paste the code for other primaries. Its silly. I would welcome a mod (although maybe its the synth mods) that works for staff primaries and snipers that does the same thing as if its a "new thing" because those were some crazy fun times and they could make it a drop mod for something not in conclave to avoid the confusion for those 5 people who play conclave.
*I was on my way to this forums for this exact complaint again when I saw this.
*Apparently they changed how the javlok works im not sure anymore whats going on.
*Whoa they reload now upon throwing cool lol