Hi, yes the Bradley AI is basic right now. I want to improve the AI, but it is a lot of work and I have been really busy with work and IRL commitments lately. When I get a decent amount of time off work I will sit down and work it out to improve it.
In the meantime, you can prevent players from throwing signals too close to objects such as monuments like in your picture by setting:
"Strict Proximity Check (Checks for objects close to signal, prevents APC landing on objects)": true,
To prevent players throwing a signal, then placing structures below the drop zone to trap it or plant remote C4, you can also set:
"Remove Entities In Landing Zone Radius (Requires Strict Proximity Check Enabled)": true,
Finally, I have looked at the error and checked my code and found a typo, so that error should be fixed in the latest update.