Well, let's see.....OP said the game is 'unplayable', none of those things makes the game 'unplayable'.
1. Abilities are different and are spread out between more 'classes' Now if you're talking about things like taking out pickpocketing, persuasion and stuff like that....then yes, I do miss a couple of those.
2. Less mage skills. Same as #1. I haven't been specializing as a mage, been taking a few skills here, a few there......The skill trees are much nicer since I can drill own to the skill I want and spend less points than in either DAO or DA2.
3. Not an issue, learn to use your weapons and armor upgrades. (Guard on hit) Skill points in barrier, resistence tonics, healing mist potions, rock armor potions. I totally suck at tactics and have had no isues. (and I initially freaked about lack of heal)
4. I agree with this. I would rather allocate the points myself. I seem to like nerfed builds.
5. Impactuful choices.....How impactful do you want them to be? not EVERY choice is a major world shaking event....is every choice you make in your daily like going to have a chaos-theory effect on the world around you? Nope, didn't think so. Small choices....small effects. Listen to the people in the towns around you....ambient convos are your friend if wanting to see outcomes. Also pay attention to War Table missions (although with this one, you will have to have multiple play throughs to realize that YES there is a difference in outcomes based on what you do.....not always, but often....)
6. Let's see......DAO Headgear, boots, armor, gloves...DA2 headgear, armor, boots, gloves....DAI Armor (which you add boots and gloves to) and headgear.....Looks like 4 types of armor in each game.
7. Crafting is your firend in this game to get different looks...back to that boot and arm thing on your armor slots (although there could have been some additional base models)
8. Poor crafting system. I usually hate crafting in games, (gawd Witcher was horrid)......I'm liking crafting in DAI. Could have better explanation about the slots though.
9. Don't need to pick flower and rocks unless you want to craft stuff, make potions. Also there are 'gather assets' missions available on the War table. A little randon on what you get back and how much, more efficient to do it yourself.
10. Totally agree. Hairstyles are ..... horrid. But it hasn't kept people from making some very nice looking Quizzys.
11. Only 2 voices.....Hey! DAO had what, 4? But they only had something like 4 lines to say....your character essentially said nothing ever. DA2...only had 1 voice. Having a fully voiced choice of 2 for how many lines of diologue are in this game is AMAZING when you think about it.
12. Upgrade how many potions you can carry and how many potion slots you have, also....belts granting extra carry potion/tonic number. I have not had an issue yet, and hey...run down? Fast travel to camp and restock....also in story critical missions there are resupply chests around.
13. Agreed that the research items really shouldn't have been lumped with 'junk'
14. Again, how much impact do you want? Why does every choice necessarilly have to thread through to every sequel....can't it skip an installment? Or really not have mattered in the long run?
15. Agreed. Although at least it changes over time (unlike DA2)
16. I believe what was shown there (Crestwood if I recall correctly) was a VERY early build. Even I know stuff gets cut in game development all the time (heck, weren't we promised a story in Destiny?) While it would have been VERY nice to have a mission or two like that....it got cut and we haven't been told why. Didn't work as intended?