other manufactures have made tires for tamiya in the past also so its not really new. Ride made the tamiya tires for the F201 back in the day. if i'm not mistaken.
Tamiya is a huge worldwide company. I'm sure they could ask any tire company to re badge their product and they gladly will.
F1 is not fun when the car doesn't work well because of crappy tires. With the resurgence of F1 lets just say tamiya knows how to keep the class running for new and old racers.
Pit 571/572's with TCS stamped on the sidewall. That's a +1 in my book all day long.