So what you have proven is that JHPs will work well if you are attacked by several naked milk jugs.
But what if your attacker is a 250 lb male wearing thick clothing? And what if your shot placement is perfect, but your bullet hits a rib? or what if he is at a funny angle and you have to take an odd angled shot? or what if he is behind any kind of barrier.
For small, slow calibers like 32 acp, I think FMJs are probably best, and it is strictly because I want to ensure I get as much penetration as I can from this round.
I would be doubtful that a lot of 32 jhp's will reliably expand. An exception to this may be the corbon load, but even if it does expand, I wonder how it will penetrate.
There are a lot of people who will tell you I am totally wrong, as I am sure you are about to see.