Funny, their page designed to convince me that GPS is bad is actually a pretty good argument for GPS.
This basically says: there is a chance that, by using GPS to block false alarms, you will miss a real one. (and, you may still get false b/c cheap door radar drifts frequency.
Which is exactly what I said. I'm the radar customer who wants: 90% reduction in false alarms at the cost of some fairly small risk of getting nailed. I don't speed all that much anyway, I usually do it in uncrowded areas, and at the rate of false alarms in pre-GPS radar detectors, I just don't want a radar detector. I don't think cops have enough time (or GPS radar enough penetration) for deliberate widespread exploitation of this weakness.
Now, the 17-year-old me would have happily had lots of false alarms for a small increase in protection: I sped more, and I enjoyed the game. If you're the kind of guy who is watching you-tube videos titled "Guys of Lidar" who are running k-band false tests vs. BOTH instant on and constant K-band radar, from multiple camera angles, then it's probably not the product for you!