Different subject, Paul.
Here it's the "last ball" warning which probably has been deleted. Instead, it may be the new big plate "Balls are expired, buy new or continue with rocks".
As for the "last shot" message which you apparently mean, it's totally obsolete as long as you have more than one ball left in the bag. Problem for me is to be annoyed by having to close it, and to see the company's greed exploited once more.
Furthermore, they fooled around with a nicely working feature, creating the chance of more faults.