Thanks for the review, from an unimpeachable X-COM veteran. I bought the game but did not get beyond the Steam install and got my money refunded. Although I didn't get to play the game, the "dumbing down" of the strategy layer, single base, small squad size, and static maps, resonate with me because they are all important differences from the original. Add to this the heavily cover-based tactics, and the MMO-like pulling groups of mobs, and I feel that the game is not what I was looking for.
You are correct that the legion of hard-core X-COM fans are not impressed with a game you can play with your thumbs. We are asking for surprisingly little. We have jumped through hoops to replay our 20 year old game, with stupefyingly ancient graphics, because actual game-play has never been surpassed. Firaxis could have taken the existing source and/or data files, ported to win32, added very little content, done some graphics rescaling to support a larger viewport, and included the game as a free extra with their new EU. That would have captured all those legions of fans, including me, and put you out of business.
But Firaxis has moved on and created a new game with, it is said, wider appeal. It does not appear to me that folks will be playing the new game 20 years from now, but they may still be playing the old game, 40 years old by then. So there is plenty of room, even among people who are enjoying EU, for a true remake of the consensus best-game-of-all-time. So Xenonauts is actually in a good place, which convinced me to spring for the pre-order. Thanks for your hard work, and may many, many people reward you with a measly $20.