> That's a year into its availability in France. Anyone who didn't have their first dose by then probably wasn't getting a dose.

You are aware of the "incentives" offered by the French govt?

Such wonderful options as the ability to go the shops without being arrested that came with, "take the mandated medicine".

That's entirely irrelevant to "what date do we pick as the cutoff for this research?"

From the chart, they picked a very reasonable spot to draw said line.