One thing I'd fault Inquisition for is the lack of a continuous ambient track during exploration. DA:I's soundtrack is the best in the series so far, but it's just too sparse out in the wild.
No, they totally got it right in that regard. The Witcher 3 for example (as always) was poorly designed in this regard because the music was always on repeat making you tired of it after 50 hours of hearing the same 2-3 tracks per location loop without any room to soak in the nature of the world.
DA:I's problem is rather that it did not make enough things happen in the different exploration zones. Everything felt dead and artificial and not suitable for supposed open-world exploration which made it feel completely dead whenever there was no music. Some more birds flocking, dynamic weather, day/night systems, NPC routines would've given it what it was missing. Not the music because if it had music all the time you'd go nuts with the amount of time you spend exploring in that game.