Just a bit of devil's advocate here, but is it possible that the problems they were solving were much more complicated than those on the AI team? Obviously I ha

Just a bit of devil's advocate here, but is it possible that the problems they were solving were much more complicated than those on the AI team? Obviously I have little insight into the actual work, but there are some hints. Long timelines indicate difficulty interesting features into an already complex codebase. Leaving the office early can indicate that low quality hours had a higher downside risk of introducing problems into a complex situation. Pure speculation here, but I know that architecture can look overcomplicated when it's actually just solving a complicated problem.