ITT: People confusing the terms "Breadth" and "Depth."
Meaningless breadth in variety has no depth. Depth in choice is tied to the value and weight of each choice. If you have a thousand suits of armor, but the lowest level armor is as strong as the highest level armor, you have breadth, but no depth in picking said armor.
Likewise, if you have 30 abilities that are all highly iterative on one another, instead of being more like an incomparable ability, you have breadth but no depth.
The problem is, Bioware's already done something like this. Mass Effect 2.
Anyone that remembers ME1 will remember that you had a ton of different weapons and armor, but there were actually the same ten-ish choices in each category with a Mk1, Mk2, etc "upgrade", and a lot of them were palette swaps. The weapons, especially, were all relatively samey to boot.
To simplify it, they took out everything for ME2, and DLC'd the rest. Want a suit of armor for Garrus in ME1? No problem! Want a suit of armor for Garrus in ME2, who otherwise has to go through the entire game with broken armor? DLC. Weapons in general and armor especially? Reduced to almost insane levels. The term "throwing out the baby with the bath water" really applies.
With DAO to DA2, you went from being able to use almost any weapon or armor, to being able to use a relative handful. Mages especially were SOL - even if you couldn't necessarily use a sword well (thanks to no talents) or armor well (fatigue and all), you could still do it. Warriors had four weapon school choices, rogues had two. But in DA2, rogues went from being able to use anything one-handed (with Dual Weapon Mastery) to being stuck with daggers or bows. No crossbows, and nothing except daggers - unless you bought DLC. Warriors were cut down to two, eliminating dual wielding and ranged choices entirely. You could also no longer switch weapon sets at will, meaning you were basically married to that one weapon you were using at the moment.
Things like being able to switch from melee to ranged would have no real value in a tactical game, would it? Nah. I'd rather be pigeonholed into doing one thing the entire game and never being able to deviate.