Seasonal flu is dangerous hence we give something like 25m vaccinations on the NHS, let alone how many get privately administered. A huge amount of research and money goes into predicting the next strains each year and producing vaccinations accordingly. Your comparison falls flat on its arse...
So Farehamseagull is potentially seeing a birthday restaurant booking all on separate tables needing to be cancelled while thousands attend a horse racing meeting still. Very clear messaging.
Further restrictions may well be needed, but if all credibility and trust in the government is gone...