I highly dislike manipulative posts like this. They don't mention that the Speak for Yourself founders are ex-employees of the other company. It's presented very one-sided and in an "OOH FEEL SORRY FOR OUR DAUGHTER" way.
It's not so much manipulative as expressive. The writer is genuinely frightened and is acting to protect her kid. The article never claims to be impartial, or even very descriptive of the legal issues. They want this app, even if it does violate patents.