I just stick the nozzle in as far as it will go and that is not more than an inch or two. It looks wrong, looks like it will be a problem but so long as the pump is pumping at proper speeds it never leads to a fuel spill. I have tried wiggling it a couple times but not had the success others speak of but also not been concerned because it pumps fine even when it looks like the nozzle is hanging out of the car.
If anyone ever finds out if the restrictor can be removed or a fill neck can be ordered without it then I'd greatly appreciate hearing about that. I find it to be extremely more annoying than helpful.
BTW to the OP if you were getting truck nozzles you will definitely notice it because they are a lot bigger than your typical gas nozzle. In all my years I have only had to use those nozzles twice and both times was at actual truck stops and both times in my current truck.