Depending on the timeline, it could be that they're not allowed to access Mythos because of something like non-US citizens on the team or the lack of some way for them to meet the constraint DOD has them under.
> In September 2024, Amandla Thomas-Johnson was a Ph.D. candidate studying in the U.S. on a student visa when he briefly attended a pro-Palestinian protest. In April 2025, Immigration and Customs Enforcement (ICE) sent Google an administrative subpoena requesting his data.
I'd think the decline of CTS is better explained by improvements in our material design: our interfaces with the physical world are much less hostile today than in '90 and cause us less harm. For example, consider the NES/N64 controllers versus a modern PS5 controller.