They're not false positives. The anti-surge feature correctly detects power surges but it detects them at a threshold which is far too low. Furthermore, these surges are a natural consequence of rapid changes in current and voltage levels that are characteristic of many powerful GPUs. In other words, these surges are not only safe, they are expected, harmless, and often completely unavoidable with even the best PSU. These problems are not experienced with less power hungry components.
Asus' Anti-Surge protection can be safely turned off if there is an external surge protector connected to the system.