Knowing that "security through obscurity" is a bad thing is a fine heuristic, especially for beginners. Thinking "security through obscurity" is automatically

Knowing that "security through obscurity" is a bad thing is a fine heuristic, especially for beginners. Thinking "security through obscurity" is automatically and always bad is incorrect. The people running this detection software don't do it to satisfy your intellectual curiosity. They do it because they are attempting to prevent attacks on their systems.