From the video it sounds like the largest problem is that the company/manager prescribed Rust as the solution to a problem where Rust might not have been the be

From the video it sounds like the largest problem is that the company/manager prescribed Rust as the solution to a problem where Rust might not have been the best fit. The dude wrote a Java version on his own time and despite being on a Java team at that job management insisted it be done in Rust. There might be issues with Rust and the scenario in question but it sounds like conditions at that work place are a bigger problem than the choice of a language.