Unless you fly internationally. Text messaging is notoriously unreliable when roaming. Also if they send you a text, there is no guarantee that it isn’t dropped if it doesn’t reach you immediately. Push notifications are a lot more reliable over international data and wifi.

There have been numerous accounts where someone couldn’t use a credit card overseas because their bank tried to send them an SMS that they were suppose to reply to to verify a transaction.

Also, SMS cost a lot more at scale for the sender than mobile notifications.