No, that's bullshit. Input isn't just input. One system is an abstract system in which you're telling a character to do something and they do it. It doesn't feel bad if you tell a character to go punch something and they miss. You're kind of out of the equation on that. It does feel bad if you're directly controlling a character however, can see you're hit hit the other character, and then nothing happens. That just feels like you've got a game with shit hitbox detection. You also know the whole point of that quote is it would fundamentally change Diablo to some extent?
And of all the games to make some kind of point about money on, the Diablo series ain't exactly it. They aren't hurting for money given how big the game is, and I doubt the cost of making it is anywhere near other huge games. Also, having a miss animation stuff like on melee attacks isn't going to brand the bank.
It really seems to me you are incapable of understanding how games work.
Instead you argue about "feelings". Dude, your feelings are irrelevant, what matters is how the game works and how results are calculated and how the feedback is shown to the player.
If what you see doesn't match what you "feel", the game isn't to blame, it is obviously you who goes about it with a completely wrong stance, expecting it work like something it isn't (a pure action game).
At no point does the game tell you it is suddenly an action game just because of some input scheme change - and to expect it to do that is absurd -, it's the same game it always was, an RPG at least when it comes to hit & damage calculations.
If you want to make some actual points, please bring something that isn't 100% based on subjective notions like which input scheme you prefer or how that makes you feel. That's like arguing with children, or reading a lot of Steam reviews.
I'll agree that Blizzard should have the money to make feedback match the actual systems better if there is a problem, but that's really about it.
Anyway, there is usually so much going on at the same time, it's a bit of a mystery to me how you even got to notice that there might be a discrepancy between feedback and actual results.
When I use abilities or swing weapons, I see the HP bars going down and that's it - seems to work fine...
And though it's been a while since I played, isn't there an option to show damage numbers? Would be additional feedback.
Given one of the biggest complaints you'll hear about X-COM are missed point blank shots, especially if your missing the target your gun is in, that seems like a very weird example to me.
The point is not that a 95% shot can be missed, that's just logical. The systems work fine, that's what I meant. Whoever complains about that is a blathering idiot with no place to discuss the game mechanic at hand.
The problem is that the discrepancy is where characters are displayed right next to each other, standing still - which isn't what really happens and could certainly be improved animation-wise (imagine two characters of opposing sides going into some kind of special animation when right next to each other, showcasing they are not, in fact, just standing there). But, again, that's a problem requiring money thrown at it and not every dev has the money for that amount of detail.