After a good chunk of time with the game, I thought I'd summarise the biggest issue for me:
In DAI we have two separate modes for playing the game. The first is action mode and that's the default state (moving with WSAD). The second is tactical mode, which has many of the familiar features from past games such as: click to move, autoattack, automatically moving to objects or targets to execute commands, individual defend/hold position instructions.
Tac camera issues aside, I believe it's the new action mode that is the main cause of confusion and the learning curve for players coming from previous DA games. In action mode the control scheme changes dramatically: hold left click is attack, right click is interact but there is no auto movement, no right click to move, you can't assign commands to individual party members, targeting behaviour and feedback is different. The main problem with playing the game is that switching between these two modes isn't as seamless as it should be.
A possible solution could be an option for tactical mode to be always on in function but without the associated tactical camera (camera would still detach as normal with T or scrolling out). This would give us the familiar camera and character control of action mode, but with input behaviour of tactical mode.