That rendering pops up at about 1:31 in the main video. It actually looks moderately better than I expected.
Either way, I do think the vast amount of people that would come to that location may indirectly help other businesses in the area - especially restaurants, coffee shops, etc. I also am not totally opposed to East Austin, but it does make sense to me to have it in downtown somewhere - downtown is intended to be the main gathering place of a community for work, residence, play, and of course civil affairs. That is historically how cities have worked all over the world. That said, does this particular lot need to have the courthouse? Right next to a park that could boost businesses/residences that may be built there instead of a courthouse? I don't know. I think I'd be more okay with the lot if the next block to the west wasn't a gigantic parking garage with no option for anything else...unless is gets mysteriously torn down and replaced.
That and the block immediately to the east is a horrendous excuse for architecture...
If it goes to East Austin, it would need to have sufficient transportation, etc., but I just can't fully get around a courthouse outside of a downtown area - even if just across the freeway. It just seems wrong to me. I'm still not thrilled with the current plan, but the judge is right - something needs to happen.