There is an important piece of information they didn't take into account. They cancelled stand-up right before the Covid lockdown. What they are tracking is no

There is an important piece of information they didn't take into account. They cancelled stand-up right before the Covid lockdown. What they are tracking is not the effect of no stand-up, but the pattern of their workers during the lockdown. The April drop in pull requests can be explained by workers feeling overwhelmed after staying home for a month.