I think the change itself is fine balance wise but thats only because i dont see how the change itself makes mines any better. Its not like their usage is in tight time that you cant even land to do so, not to mention the fact that if they were to be throwable mid air it means youll be landing almost right away because it takes so long to throw them after you switch to them that you lose all of the height youre "in the air for". This is because i'm pretty sure they have a delay when you swap to them before they become throwable meaning you cant do like a dhs with mines instead of guns. They just wont fire in time.