They are more aggressive then JWT. But really whats would be more interesting to see is what the knock sensor is doing versus EGTS are doing as well. What kind of CHT are being seeing.
Its very simple there is such as aggressive withing limits of the motor. For example sustained high EGT/CHT temps will cause the motor to fatigue.
But the bottom line truth is that anything beyond factory specs will cause that as well. So where is there a line? It would take a full all out study as to what kind of wear is being done on the motor.
The other factory is historical data. IF your tune blows up more cars then it maybe a bit much.