Of all the different racing series I watch, tire warmers and their consequences happen only in Formula 1. For everyone else, if you have to leave the pits with cold tires... deal with it. I'm totally in favor of removing warmers because it introduces an unknown variable. That is something teams work to eliminate, so it's understandable when teams bitch and complain about something that spins the wheel of fortune.
But for the fan, it's just great. Now, after a car pits, interesting things happen, and usually do. If a driver spins out or something, then it's because the driver made a mistake. Tough.
It's tools such as tire warmers that have made the sport more predictable and sterile. Good for the engineers and drivers, but for the fans... boring.