I don't think turn based is bad at all when you design the game around it and make each encounter meaningful. It wouldn't work at all in Origins though where about 60 percent of the fights are worthless trash battles against rats or zombies.
You know what pisses me off about Dragon Age? By the time Inquisition rolled around the series was no longer a dark fantasy, but just another happy go lucky goofball kitchen sink Forgotten Realms style fantasy setting. I miss when Dragon Age was dark tonally and conceptually, lots of horror elements and terrible things happening that you could either rise above or had to deal with making the best out of a bad scenario.
For fuck's sake, DA

lets you kill a child while his mother begs you not to murder her boy to stop his demonic possession at one point, and it is considered a cruel but relatively reasonable course of action. The city elf origin starts with you failing to prevent the abduction and rape of your cousin. Just horrible shit.
And the Qun, Sten, going on sexist rants against female PCs and telling them they belong in the kitchen. Just no line Bioware was afraid to cross at the time.
Even II still had some serious darkness to it. What with your mother getting Frankensteined.
Then Inquisition hits and it's all about getting fucked in the ass, hugging your friends, trannies being totally accepted by the Qun that apparently has such rigid gender conformity that the very idea a woman might pick up a sword is baffling to Sten. Leliana is kidnapped and tortured in the bad future but not raped of course, just turned into a weird zombie face woman with evil magic. There is badass strank wahmen everywhere and the Inquisitor can never have a bad boy racist thought. There is a massive demon incursion but the Desire Demons are mysteriously absent because you can't have big tits on a manifestation of human lust for power and carnal satisfaction.
Fucking criminal what happened to this franchise.