It's not the car, it's the type of drivers that drive them. Just so happens there are a lot of younger males ages 16-25 driving the FRS/BRZ. For most of them it's their first rwd "sports" car. It gives them confidence, they want to hang with the "big" boys now and they often feel they need to prove they can.
For example, i was driving the Z last weekend and was going in the right turn lane. There was newer Camaro, with a modified exhaust in the lane going straight waiting for traffic in front of him to move. As I drove past him and made my right turn, I saw him jump out of his lane into the turn late, proceed to floor it to catch up to me. When he got even with me he slowed down, down shifted, rev, slowed, rev, and sped off...
and at the next light I got to see the driver.... probably 17-19 years old.
He went out of his way (changing the road he was planning to drive on) to come do a flyby downshift on me.