iserith
Magic Wordsmith
As the title says, why do you guys think the design choice was made, to only restore half the hit dice on a long rest?
I can't speak to the designers' intent, but to my mind it just adds an additional level of resource management to a game that features resource management in the face of attrition.
As to your subsequent question on long rests in dungeons, in my games the answer is usually "No."