Exactly, which is why you can still use mana shield.
I think low-HP isn't just for melee, and for those of us who don't have nice latency might be more optimal for a mage or a ranger. I'm thinking of doing a build where i've invested enough AP to get 200 int, mana shield, and lots of MP, but otherwise i'm just a low-hp ranger. I think any long-distance skillset and low-hp would work quite nicely.