Running a script to get the cars, although, yes, it works for now, is not the answer to the issues.
Remember the GT5 hack? Yes, there were people showing up in lobbies and preying upon the unsuspecting, but the hack itself was fun.
Engine Swaps, Nitrous, Super Soft Tires, the chassis swaps were great because they turn uncompetitive cars into decent cars. It was a workaround.
They shut it down, but in following game we got Nitrous, Super soft tires, and now, engine swaps.
The issue is that we all know that this MTX issue is wrong. I love the F40. I have owned one in GT5, GT6, and GTS...and from GTS to now, it's gone from 450,000 credits to 3mil? Why? Or what about just transferring my cars??? A hack is not the answer to the game's problems. Addressing the problem at the source is the solution, because when PD eventually blocks the hack, and they will if they can, the core issues still persist.
What I will say though is that the more people hack this, the better it will be for everyone. It will force them to act, although, they should be acting on fixing lobbies and such.