How effective is calling out rival brands in ads?

Nationwide's 2023 ad featuring Dominic West slating rival branch closures went down like a bounced cheque with real-life banking bosses. Campaign asks if calling out the competition is good practice.

How effective is calling out rival brands in ads?
Nationwide's 2023 ad featuring Dominic West slating rival branch closures went down like a bounced cheque with real-life banking bosses. Campaign asks if calling out the competition is good practice.