It is additional information......the sensors also give temperature. I find the information for the 6 tires I am monitoring on the trailer useful. TPS systems come on many vehicles these days, & just not high performance. It's useful information. I have never driven an engine low on oil, but it still has a oil pressure gauge. The temperature reading is helpful I feel, as temperature rise can be a precursor to bearing issues, or the fact the the bearings are running cool. I use the TST system, & like the fact the batteries can be replaced myself. The little sensors probably do best on steel valve stems. But, you are correct, with a catastrophic tire failure, the system may not help much. It also saves time in running around the vehicle checking all tires, as I know what the pressure is. Anyway, that's been my experience.