Which pubs and have you got a link?
i know the Starkey's arms in Heywood was shut.. That's a holts pub, i know because i was contacted by track and trace. Two others also had to close for a deep clean after someone had been there and eventually tested positive. Unsurprisingly the landlords and brewery's try to keep this on the low down, its simply bad for keeping punters in your pub. But the whole argument and logic in the question is flawed before you even get to that.
So he says that no one caught it in any of those pubs since lockdown ended ? you ok... can you prove 100% where anyone got infected ? was it school was it work ? was it the bus ride home ? or was it the shop to get some cigs ? its impossible to prove exactly where anyone contracts a virus.. but to say it hasn't happened in any of those pubs is complete bollocks as i have personally witnessed this, i had to get my child tested to see if we could go on holiday as her mother was drinking in that venue.. so take that as you will.