I'm not sure what you're trying to say. All of KyoAni's TV shows have aired at late-night, and not on NTV, and so are aimed, at least partially, at otaku. Certainly Full Metal Panic and Haruhi LN adaptations, all of the Key VN adaptations, and Lucky Star had otaku as their main target demographic. K-ON, as a Manga Time Kirara seinen manga adaptation, is also an otaku-aimed series in its original form. Yamada moved the anime in a more mainstream direction, especially in the second season and movie, and she continued to direct stories with mainstream appeal with Tamako Market and Sound Euphonium. Her next project, the feature film adaptation of A Silent Voice, a manga published in Weekly Shounen Magazine, is her most mainstream project yet, and is likely to get a wide theatrical distribution, reaching a much broader audience than any of KyoAni's prior projects have.
If you have this conception that KyoAni is made up of a bunch of cynical businessmen who are only in the anime business to make money by exploiting gullible otaku, that isn't substantiated by the facts.