@Gorbles What?!
I think most of us can see that Civ VI has incorporated many aspects from mods that exist for Civ V. All the changes VP has made to the AI and other DLL based mechanics are freely accessible via the GitHub repo so if the developers really wanted to make a challenging AI all they had to do was look at the code.
Time and money constraints do not justify the product released by Firaxis, they must be walking to a different tune to the rest of us.
None of the complaints about AI have any excuses stemming from the new game mechanics, they are all basic errors/design decisions that could easily be changed if they so desired. Clearly they do not! Firaxis are simply making a game that they feel appeals to the majority. Maybe they are right, maybe those of us here in CFC are elitists? Too skilled in a game that is in it's 6th iteration? I personally don't believe that.
If I see a an un-escorted settler trying to forward settle next to an active warzone I think poor AI.
If I see archers massing around a city but no melee unit to capture it I think poor AI.
If I see unsettled strategic resources near to your starting city and a settler in your capital, 200 turns into the game, I think poor AI.
Need I go on?