Isn't the problem that it's designed to work from a distance, and that by boosting the signal the criminals can just increase the distance so that the key inside your house reaches the car? It seems inherently less secure than the old system where the physical key has to be practically touching the ignition to disable the immobiliser.
This obviously isn’t 100 percent full proof but likely works well enough for preventing many common mitm scenarios such as stealing from a car park or drive way most of the time etc.
With Tesla you can disable keyless entry and use key card if you are so paranoid. But stealing connected car doesn't make much sense to me.
How so? Even if you know the location you need someone with jurisdiction to go get it. You disable vehicle, then it gets destroyed.
EVs are entirely different designs than an ICE vehicle, and Tesla in particular is moving beyond the flawed CANBUS to something more robust and secure.