About the accuracy - I was doing research on the setting throughout the jam and made a lot of effort to be faithful:
The Anti-Personnel Mine Ban Convention is a real thing. The dates are true - it started around 2009 and continued until 2020. The company logos (BacTec, Fenix Insight) are the actual logos.
The design for level 2 is to represent people being skeptical about how safe it would be. They had a total of 77 kilometres (48 mi) of fences and many preferred to leave them. You will find that the demining groups themselves avoid making guarantees.