No, it’s fine by me. I believe that it was thought that the combination of frequency hopping and spread spectrum would make it difficult to monitor and jam ( other than very wide band jamming). My application was rapidly moving so triangulation would be difficult.

If I understand the capabilities of modern Software Defined Radio systems, then they can monitor many different frequencies at the same time which might defeat those old systems. It’s been a long time since I read up on the current ideas and capabilities.