The only reason why I agree to having in-combat heals is because I've always liked playing the support mage/healer class in any game.
When I found out that there were no heals I did feel a bit of a let down only because heals is one of the most important things about a support character.
Plus it seemed more lore to me to have healing spells that healed people quickly in combat than someone mid combat stopping and drinking potions or throwing them on the floor to heal everyone.
Like really in the middle of fighting a Pride demon or a Dragon or even Corypheus himself, do people really think potions is more lore than healing spells?
Especially for a melee character fighting up close, it would seem extremely random to just quickly take out a potion and drink it in the midst of an intense battle and then be like 100% healed.
If I were Corypheus and I was fighting the Inquisitor and in the midst of battle when it seems I've got the Inquisitor beat, he quickly takes out a little flask and has what appears to be lemon tea and then he's instantly healed, that would be a major WTF moment.
That's some Jesus juice right there lol.
Maybe it's just me but I've always thought healing spells were much more lore than insta-heal potions.
For the sake of lore I hardly ever liked to use potions because in a strange reality fantasy world where a battle like such would ever happen, the last thing you'd think of doing is taking a quick refreshment while demons and dragons are trying to kill you.
Plus I'm sure with all the fighting the flasks would have been smashed with bits of glass embedded in you since you know in a battle people and things get hit and stuff breaks.
Like if a dragon's tail swiped you and you survived, I'm pretty sure the potions would have soiled your pants while dripping down your leg.
Anyway that's just me, to each their own and I still like DAI, just that from a lore perspective I've always thought healing spells were closer to lore than potion chugging.
Also, Wynne would be very disappointed if her healing spells were taken away lol.