The reactions of Topo owners of which there are several around here has all been positive. However on occasion the rear hub has been mentioned. It is usually in the context of it getting loose or not being able to get it adjusted properly after that.
Your post praises the hubs and your torture machine would seem to be a perfect test. Have you had such problems? Do you wrench your own bike? You said you were on a team that gets many demo wheels so I thought a team mechanic could have dealt with it. (Everyone who has Topos raves about their ride.)
I'm just curious. At the moment with my son in a very expensive college high end wheels are not even under the table much less on it. I was hoping that any early hub problems they had are now a thing of the past. (As I recall those posts were all people who bought them early on.)
Last question, do you think they might make an "extra stiff" wheel for those of us in higher weight groups? He did it when he was working with the Rev X. It seems like that is what they did for you.