I think this is a little hyperbolic. There are a ton of schematics in the base game, and a bunch more were added with the Black Emporium (which counts, I think - it's was patched in). Mostly, I don't know how you can possibly characterize it as limiting. The way they tied stats into crafting was actually really cool and flexible, and the variety of looks available with the tiered materials and tinting was pretty staggering. And the accessories were just... rings and stuff. I don't know what there is to be mad about. Though I guess it just comes down to taste.
I'm just a dork about gear in RPGs. I like customizing everything I can, and using a wide variety of stuff, so I thought the fact that most of the gear you ever pick up (and nearly every schematic) is pretty much useless was disappointing.
I don't really count Black Emporium as base game, it was released months after the game came out, and in DA:I's base game I don't remember there being a ton of schematics. At least...not a ton of good schematics. There were a lot of schematics in DA:I that were every bit as junky as the bad ones in TW3. Also, until the tinting came out, again, not base game, it was very difficult to make your armor look the way that you wanted to because only certain materials added the things that you wanted to. And even when they started getting good, they mostly just looked the same as the lower leveled ones. I mean, some of them were literally 'Masterwork (insert name of lower level armor schematic).
When it came to crafting in DA:I, it eventually got really tiresome to me. Having to farm the materials, because I didn't want to spend money buying them as some of the schematics were really expensive, and then the actual crafting itself. Some of the bonuses you could add were pointless to me because the combat was so bland and easy to me. Why add fire resistance when I can mow through pretty much everything in the game even on hard? Never did nightmare but have heard that except in beginning levels it wasn't that much more difficult in the end.
Also, sometimes you get what seems a really good schematic at first, only to find that the slots are not the ones that you would want. That was one of the most frustrating things in the world to me when crafting in DA:I, to finally find a schematic that I really liked the look of, only to find that there is no offense slot. On a rogue, or a mage, on any dps character, there should always be an offense slot on all armor, because you want them to be able to destroy things quick. I'll sacrifice some survivability for that. They should have given us the option to choose what kind of slots we want on the armor.
At first the crafting in DA:I seems really great, but eventually it just got monotonous to me, even once the better schematics came in with DLC's. It is complex and it is a good starting point. It's missing something though. I don't know what it is, but there is something. I can get into a really good crafting system and never get tired of it. Minecraft's for instance, even for as simple as it was, I never got tired of making things and enchanting things in that game.
I am every bit as much a loot dork in RPG's as you are, which was why I was so disappointed in the accessories. Look back at the gear in DA:O and even in DA2. Some of the rings and belts and amulets in those games were just fantastic. But in DA:I we get 30% to (insert skill name here), or element resists or plus so much to whatever attribute. It was boring. I know that I sold things that were upgrades more than once simply because I got tired of looking at it all.
I will admit that I would like to see more varied gear in TW3, but to say that the gear in DA:I is so much better just seems erroneous to me. Again though it is all opinion and everyone has their tastes. I can at least agree to that, lol.
Wow, this was a lot longer than I originally intended.