If you followed the case, I think you'll see that there are some things Samsung directly lifted from Apple. For example, there are some keyboard layouts that are pixel-per-pixel identical to Apple's. I don't know why you'd remove the default android keyboard (since it's better) and put the apple keyboard in there.
If I were part of the jury, I'd think I would come up with the same conclusion as well. What company goes out of its way to copy another company's look & feel?
Apart from approving or rejecting every piece of evidence and testimony the jury would receive, which power could easily be used to create a reality distortion field around the jury... I'm not actually accusing Koh, just noting that juries are shown a very carefully constructed picture that is largely controlled by the judge, and may or may not resemble reality.