Oh well. For thats just the same, and I prefer the mobs keeping their regular hp. But to each his own - as it does not effect gameplay at all.
As for SP souls dropping - those are relatively worth much more for someone with low sp pool then for someone with a huge sp pool. So, for any ranged/melee that use a little spell points for heals these are worth much more than for a sorc with 7k+ spell points. HP souls for 250 hp wouldnt even matter at all anyway, so asking for those as some sort of equalizer does not seem very relevant.