Disagree. No amounts of practice will prepare you for the real thing when that thing does quit and you're going down. Invariably, through the turn, with a hurt rate pumping and breathing rate increased, looking back towards the runway or otherwise eyes out, pilots have time and time again continued to tighten the bank and pull back, dropping airspeed and then entering a stall/spin. In a practice, you know it's coming, you're relaxed, know exactly when it will quit, when you'll turn, etc.
That's why you have to be disciplined when performing it: Knowing and having the SA to recognize whether you are even in parameters to begin it; then having practiced it enough to be comfortable knowing how it will feel when you do perform it, and thus build the ability to counter as much of the adrenaline and fear that will invariably occur, and not let those cause you to make panic control inputs.
I can't accept that every case is a guy heads down in a gizmo. It's fair to say no one intentionally goes to hit another aircraft midair. In this case, a jet crew and a Cessna 172 failed to see each other in time to prevent a collision.
In the airline world, we had these issues with GA traffic. PSA at San Diego, Aeromexico at LAX Cerritos, many passengers died, and we finally said enough is enough, that at jet speeds we're too fast to reasonably pick up and react to traffic, and so we must have TCAS. Since then, airliner midairs have decreased tremendously.
Notable exception to the 2002 Uberlingen midair in which one Russian crew followed ATC and not his TCAS, ICAO then clarified to always follow TCAS first. And the Legacy/GOL midair in Brazil, the Legacy transponder was inadvertently off.
I can't accept that either. Why? Because I don't know it to be the case. TCAS is a great tool, and it should supplement the eyeball like it does. ADS-B will be even better. But each midair is different in dynamics, and until its found out what the causal factors of this one were, it's jumping the gun to say "Aha! THIS would've prevented it!!"
A midair in a traffic pattern at a towered field, obviously has some very different dynamics than two random aircraft coming together in the middle of nowhere at 10,000 MSL in cruise flight.
We just don't know yet with this accident.