For the first three questions: Yes, to all three, with passion.
Now, the answer to the fourth and final one is quite longer. Why I feel disappointed in the "truncation" of NPC stats is, because it wrecks my feeling of verisimilitude in-universe severely; no wonder if I add that my personal favorite (hypothetical) RPG rule is GURPS (with equally divided DX and IQ, plus legally free as with OGL or CC, but that's another story).
The personal preferrence of every in-game entity running on the same principles (especially with no Heal-Damage Asymmetry, like Pokèmon, for a JRPG reference, in contrast to Final Fantasy and many others) violated.
Every time I see a fantasy heartbreaker rule showcase such an incident, something inside me I can feel dying rapidly and viciously.
It is deeply unsatisfying, really; maybe some kind of depression, but hopefully not (my Will save is surprisingly high for someone with such a personal history).
However, I do understand well that for Gamemasters, simplified statistics (and H-DA by extension) are a million times easier to actually run, particularly if their screentime is destined to be short.
So it's my compromise that while I may complain about its existence now and then, I won't try to police against such style of prep and play as hard as I can.
Well, if I ever get to GM someday (I only have player experience, since I'm not sure if I have the responsibility or social skills to manage the job seriously, plus without RL spare time), I will revel in preparing elaborately statted up sandboxy worlds, even whilst knowing that it may drain my energy mercilessly, because that is the primary reason why I decided to invest time and love for this hobby.