First off I play on PC just like the so called DA enthusiast but i use a controller, that's because the developers recommended it for DA:I not that i didn't try to play it with keyboard and mouse and didn't like the way it felt. Does that mean BioWare lied to me or cheated me? No, the experience was to be different for either input device. My fellow PC gamers who are complaining about the keyboard and mouse interface and saying the game was designed for console game controllers need to get off it, Gaming PC's have had Joysticks since the beginning, it's nothing new or some affront to the community, it's just the first time BioWare has directly implemented controllers into a PC version of the game in one of their games (at least to my knowledge.)
Have I had issues with controls? Yes, are they that huge that im about to complain about a game im thoroughly enjoying even control wise since 95% of it is fine and responsive. (only problem i've had control wise is sometimes based on the elevation of the character the cursor during tactile mode will get stuck) but complaining about that i can't do point and click battles, no, because im not button smashing, no.. They TOLD US from the get go, that combat was a hybrid of DA1 and 2. Which is exactly what we got, a system in which you aren't smashing keys every second, but do actively have to pay attention and push a key every few seconds or just hold button and do continuous attacks your choice. They didn't lie about this, auto-attack isn't needed, people just need to pay closer attention to what is said or maybe just learn to adapt.
Also while i haven't tested it myself im almost certain you could easily just select disengage and swap your weapon, there is no cooldown on inventory access when you quit battle so im almost certain you can switch weapons that way.