This article is vague on the specifics, but it looks from their website like they're talking about an MSR using a conventional uranium fuel cycle, rather than g

This article is vague on the specifics, but it looks from their website like they're talking about an MSR using a conventional uranium fuel cycle, rather than going the Thorium route like lots of other MSR enthusiasts seem to want to... I wonder why they went that route? Seems like if you're going to go to the effort of developing a new reactor design from scratch, there's not really any reason to leave half of the potential benefits on the table (proliferation resistance, fuel abundance, etc.).