This is true. The user experience is not going to be affected by unpredictable inter-block times. We have the ability to offer secure transactions with 0-conf.
0-conf is fine for coffee tea and a pizza or rent. Booking time critical payments for things like air tickets, hotels, etc is a nerve-wrecking affair with BCH. LTC works well.
LTC has RBF! You must wait 2 mins to confirm on LTC which is unacceptable for most tx's. Not needed for 0-conf which is fine for anything CC's are used for like travel.
Credit cards sit as pending for 24 hours and can be reversed after 30 days. BCH is instant unlike Litecoin. Have fun waiting 2 mins in the checkout line!
But in that case the service provider may wait for a confirmation to release the service. If it detects the double expense, the airline ticket or hotel reservation would be cancelled.
It is not an "example". It happens every month. The last event was a day ago - the transaction was not even searchable on Blockchair until after block confirmation. Pure Panic.
Why broadcast your travel agenda in the clear to the Entire Internet? Wouldn't it make sense to encrypt those txns, especially if the block time was still 2 mins and the fee was $0.01