8 active abilities, no pausing unless you go into top down tactical mode which is optional...basically you can play this game as an ACTION RPG. I believe the comparison is valid.
Problem with this "it's an action RPG" complaint is that they also greatly improved the tactical camera mode, and added a lot of tactical depth to the game with the guard/barrier mechanism, cross class combos, focus abilities, and equipment customization.
The 8 ability limit wasn't added in a vacuum, there's a whole bunch of stuff that was added.
Furthermore, the tactical mode being optional somehow doesn't mean the game is less tactical. You could just as well say that it's the action mode that's optional.
Besides, there's still the same dynamic as in DAO: it's only on harder fights that you needed to go tactical, and the same applies to DAI. The difference being that in DAI every single battle counts, as you can't just heal up damage if you're careless.