He's comparing STS' desisions with coming up with a different game for each theme but reusing the same mechanics, like zynga does with their games. it's a terrible comparison, as zynga is a one trick pony and all of their games are exactly the same with just different pictures. They even rip off other games (to a T sometimes) and change the images and call it their own.
DL will not be anything like the zynga games. It'll be awesome. Don't worry about it.
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