No, its not.
A broadcasted transaction can be seen in a block explorer as "unconfirmed". BCH does not have RBF, so DS attack is close to impossible after 2 seconds.
That does not stop purchases being cancalled by vendors due to "confirmation delays". This is real and it happens to me a lot and probably many others. These are facts not 'hopium'.
I dare not name them, they are very good mostly, I still use them a lot. they sell airline tickets, My bookings were cancelled and thereafter unavailable. I rescheduled the trip.