Yes, it's not like we would have had a choice had they told us they were going to do it, since it's a mandatory safety thing, but if you don't HAVE to go in for anything else, I'd wait until you can be sure the update won't brick your car.
We took our Macan 4 into the dealer to have our windshield replaced due to a rock chip/crack, and were told it would be ready by the end of the day. In addition to the windshield, however, the dealer opted to take care of this ARC5 recall (without informing us...this was before we had been...