[refurb]

Exactly this. A lot of conversation seems to ignore how humans behave. Pausing, examining data and restarting with updated guidelines further encourages confidence in the process.

Imagine if the FDA says "no big deal, low chance of it happening, keep going", then a week from now "oh seem like the rate has doubled, still low, keep going", then a week later "ok, if you have any risk of blood clots don't take the J&J vaccine". That scream "we didn't think this would happen".

You've just eroded trust in the system and the next time some weird side effects comes up you won't have to pause, people will just refuse to take it.