I agree that calling the police does seem disproportionate but on a fundamental level, if someone breaks the law, isn’t that what they’re for?
If people can pick and choose which laws they want to ingnore, and this behaviour is endorsed by the police, then what is the purpose of these laws?
Without laws, what do we have? How long before we descend into anarchy?
Perhaps the other option would be to report the landlords actions to the licencing authority. Perhaps they would revoke his licence if he’s demonstrating that he’s ignoring the laws around his licence.
It might even be in the landlords best interests long term if the police had asked him to fill the bottles.