Why? Why? Why?

Why do I think things are as they are?  Well - it comes back to Blizzard more than the players.  In particular the decision that for 1 level of the game (85) you have gear ranging from ilvl 295 to nearly 400.  That's a LOT of variance, another reason why you can't expect a gear appropriate (ie., meets minimum ilvl requirement for a dungeon) to be able to carry your food bill - keep in mind, your health bar may be bigger than the healer can fill on a single load of mana.  Of course he could carry you through a battle (if its done sensibly) but you won't wind up at full health at the end.  Which brings us back to the previous posting...  if you're not at full helath and your healer has to stop to drink, then you stop and eat just like your IQ is normal.