"The simple point I'd make is this: the last time the committee considered this question, if my memory serves me right, was in 2018. The world has changed a lot since 2018."
Earlier on Thursday the BoE said its policymakers had asked staff to start work "to reconsider the previous guidance.
The central bank published results from its review of how prepared lenders like HSBC, Lloyds and Barclays would be to implement negative interest rates for the first time.
The Prudential Regulation Authrity's engagement with regulated firms had indicated.
Britain, where some 9 million people have been given their first dose of a vaccine, said it expected its supply of COVID-19 shots would not be interrupted.
Broadbent said the smaller slowdown in inflation reflected shifts in consumer demand during the pandemic that had led to temporary capacity constraints in businesses.
The consequences for cost pressures over the medium term - and therefore for monetary policy - are probably limited.
Britain is keen to maintain the City of London's attractiveness as a global financial centre after full access to the EU, hitherto its biggest customer, ended last month.
Overall, the Prudential Regulation Authority's (PRA) approach to the supervision of international banks remains stable and consistent following the UK's withdrawal from the EU.
European share trading worth billions of dollars left the City of London for the continent this week in the first tangible sign of Brexit's impact on Britain's financial services sector.
Bailey said Britain must not become a "taker" of EU rules in return for access.
The pound is benefiting from an improvement in the narrative on the chances of a Brexit trade deal this week, almost a year after Britain formally left the European Union.
Germany and France said they were set to begin inoculating their citizens with the Pfizer-BioNtech vaccine in the last week of December, once it is approved by the European Medicines Agency.
Britain and the European Union have moved closer to sealing a new trade deal but it was still unclear if they would succeed, the bloc's chief executive said on Wednesday.