Ditto'd on all the complaints. The reviews I've read never mentioned, in detail, just how much DA:I lacked. They may have alluded to not really needing strategy all that much, but that's not the same as 'BioWare broke/gutted the entire Tactics mode'.
The way DA:I is, I find it hard to believe they spoke to any of their core DA fans during development. Or, if they did, those voices were ignored in favour of people who just weren't familiar - or didn't care about - the systems and design in the previous two games.
I've no idea whether they'll be able to add Tactics back in, but it'll be a much lesser game if they don't somehow manage it.