Honestly, I don't see it becoming a rule in T/A. It's too hard to set up a good number, too hard to race manage and really forces only the fast guys to be on edge. The only benefits are to those who can't run close to the breakout time, and in my opinion, rewarding the slow isn't something that we should do.
Racing is racing, and guys will always want to get an advantage. It's part of the sport and the hobby. We could all go knitting and then we wouldn't have to worry about the next guy having a faster motor or better battery pack, or having more mad skillz.
Adding break-outs to this class really does nothing but complicates the class, rewards slow guys and penalizes the fast drivers.
I'm of the thought that we should pretend we are all 14 years old and it's 1985. We aren't A-main drivers, but with practice, time, effort and a lot of learning, we can all get better, faster and potentially challenging the fast guys for the wins.