It seems like a lot of "modern" games suffer from the same thing ...
1: Very short play time - apparently the developers think players all have ADD now-a-days, and are afraid to make each level last longer than 4 minutes.
Are they wrong? Isn't the watering-down and making-more-convenient an industry-wide trend, rather than being confined to the RTS space? And aren't most of these trends driven by actual player expectations?
2: Very simplistic game play - push button, win the internet ! Do the devs seriously think players now can not figure out more complex game play mechanics ?
It is entirely possible that many players can't figure out complex game play mechanics. Many of them lack the lifetime skills and background necessary to tackle complex mechanics.
This reminds me of the
I Know Kung-Fu blog posts by Shamus Young. The overarching theme of those posts seems to be that strong skills in a particular genre are developed over many years of playing games in that genre, and as further games are developed that cater to the people that play those games, the newer installments increasingly assume a certain level of proficiency in the basic skillset. The result tends to be a game that is increasingly hostile to brand new players who don't have those basic skills. However, if you leave those assumptions out, the result tends to be a game that the core audience is contemptuous of, calling it "casual fare" and passing it by. So you either cater to the newbie audience, or you cater to the vets. And the vet audience is always shrinking, as people grow up and find other things to compete for their time.
The last decade or two saw a rapid expansion of the potential audience across all genres. Games stopped being things solely for young, testosterone-fueled males and started being things that anyone can play. However, the new audience members typically don't always have the hours of time necessary to complete a full RTS battle or to develop the comprehensive skills necessary to master a good, meaty RTS, leaving such mastery to an ever-dwindling pool of aging gamers who increasingly find less time to play.
I really only have personal, anecdotal evidence for these musings. I look at myself, and the many, many, many hours I spent as a young man, playing Age of Empires, Age of Mythology, Command and Conquer, Warcraft, Starcraft, etc.... I honed my strategies playing against the computer, and tested them playing against my brother. We had the leisure to master the craft, and had vastly fewer potential distractions pulling us away. I look at my nieces and nephews, now, who love to play games. Their games, though, seem to me a very shallow and sticky mess of Android and iPhone nastiness, and they are constantly flitting from one app to the next, sometimes only playing for a few seconds or minutes at a time before moving on. And the games they play seem to reflect this type of play in their shallowness and approachability, trying to wrest minutes of a player's time rather than the hours they once did. Minutes of play time do not lend themselves well to deep, meaty games such as RTSs.