That's how it's been, by the RAW before houserules, in every edition thus far. As I said, whether you want it to be that way in 5e is up to you, but unrealistic falling damage and many other unrealistic mechanics have been features rather than bugs since before 1e.
It's a feature and not a bug
in your game. In mine, and many other games, it is a bug. Without that qualifier, your statement is not correct.
It's a small yet very important distinction. One that I feel is crucial to remember.
People who try to houserule things to "fix" falling damage and lava and such are missing the larger picture, I feel, no offense intended to you; D&D should definitely not start at "mid-level people are realistic" and work its way up, it should start at "mid-level people are mythical Greek heroes" and be able to be adjusted up or down.
Again,
in your game.
The only
shoulds that exist as far as D&D goes is that each and every individual group has the right to decide how D&D should be played at their table.
The only big picture being missed by anybody here is that.
Neither the rules nor anybody else, get to decide the way that D&D should be played.
Monte and Company are designing a game that will support that. People may as well start getting used to that concept now.
If there's one thing that's stayed the same through the 2e-3e change and the 3e-4e change, it's that realistic people are low-level and the game world always tries to model that, with the rate at which you become unrealistic varying by edition. Moreover, it's much easier to houserule in absolutes based on heroic rules ("Lava kills you, period") than it is to extrapolate more heroic rules from absolutes ("How much damage does Kratos take from laval?").
I know it's not universally accepted that it's easier to add things than subtract things. However, the stated design goals of D&D Next (from Monte and Company) is that it
is easier to add things than subtract. It's the way they are designing the game, whether one likes it or not.
You have every right to have the opinion that subtracting mechanics is easier to you. But purposely denying or fighting against the idea that D&D Next is being made with the concept of Adding modules and mechanics one wants, rather than Subtracting modules and mechanics one doesn't want, is futile.
So play what you like, and feel free to houserule to your heart's content, but I strongly believe that the based D&D power curve should remain where it is.
I don't believe the power curve should stay where it is, but it's certainly your right to disagree with me. It does appear though that Monte and Company don't agree that everything should stay where it is as far as the base game. It does however mean that you will be able to play your game using D&D Next, and I will be able to play my game using D&D Next. I'm expecting that a need for houserules will be greatly mitigated in the next edition of the game. So far, my expectations seem like they will be fulfilled.
But, as to
play what you like...
Mmmm Hmmm...play what I like, just as long as I (and everybody else) remembers the way the game
should be played...?!?
Sorry, but putting a caveat such as this on the end of continued statements about how the game
should be played, does not make one tolerant of other styles and ideas. It just means that one recognizes what's correct, whether they agree it's so or care about being correct themselves.
So, Sorry. I'm just not buying it. I don't believe you actually mean that.