Killing an entire mob stack at once and gaining player drops - is this intended? if so simplify this

It is possible to kill an entire mob stack at once and get the player drops from it. To do so, you have to punch the mob stack, then immediately push it off an edge and have it die from fall damage. It will drop XP and likely player drops. It may also be possible to get Looting drops from an entire stack but haven't tested this. This isn't a very intuitive process, especially as mob stacks don't take knockback (you have to hit the stack, then push it off the edge). I don't know if gaining player kill drops from an entire stack at once is intended. If it is, at that point I would argue may as well make it simpler (i.e. just attack the stack to kill it all at once, think that's how it works on RPG) as that's easier for players to figure out/understand.