Knights healing is shitty lol? In comparison to what? When a knight levels he also gains more hp and more capacity to carry those manas. Knights don't lack in healing here at all there the most over powered vocation in the server and if your using real tibia comparison's which I'm thinking you did when you said there healing is shitty, there healing should be shitty and it should be a terrible vocation to play but right now the majority of players online are always knights.
1) Yes the knight gains more hp, therefore he must be able to heal more hp, or it is just fucking pointless. Without exana mort a 300ek will heal the same as a 130ek, but yeah you're right that's totally overpowered and bullshit that a knight 170 levels higher heals the same. That's the stupidest thing I've ever heard. More cap? What's the point when the potions you can carry aren't enough to heal you in the first place? You'll die before you can even use the extra potions you can cap.
2) Just because real tibia fucked knights doesn't mean they need to be screwed here as well. It should not be a terrible vocation, no vocation should be.