I see the Tory right wing are bellyaching en masse at the latest decision to lockdown England. The well known prick of the highest order IDS is spitting feathers and apparently this was before Gove made his comment on Sophie Ridge that the lockdown may not end on December 2nd.
I wholeheartedly agree with you that it is wrong to give an end date for any of these measures. I can understand the desire for people and businesses to have specific dates to plan things but the very nature of the disease makes it difficult to forecast it's trajectory with any degree of certainty. The honest answer would be "we have a criterion (the R number for example) and when that is reduced to a specific number we shall withdraw the restrictions".
Anything else is just tokenism so as to keep different factions happy. The enemy is the virus and we should all tackle it in unison and not fight among ourselves.