Nonsense. The issue in question was that Samsung copied Apple's design in an effort to fool regular customers into thinking they were buying Apple products. As such, it makes perfect sense to have the jury consist of those regular people.

You mean, like how patent applications are reviewed by government experts before a patent is granted?

Except that it's NOT a highly technical issue.

It's mainly a trade dress and UI look & feel issue. So the general public are absolutely the right people.

The case also covers some extremely technical patents.

True but it isn't central to the case.

The Samsung counterclaims really centered around the patent exhaustion issue. If the jury found that it did not apply in this case Apple would clearly have infringed.