My recollection was that Otmar said he’d been feeling unwell from after the Socchi GP,
Yep, if they’d known beforehand, they would have had Hulkenberg all ready to go. They lied about it because they didn’t want everyone he’d been in contact with to be quarantined. At the very least that would have excluded his side of the garage, quite possibly both sides. They delayed the test until after the race because they are in close contention for 3rd in the championship and cannot afford to not race.
That’s easy to understand, but if it had turned into a super-spreader event, it probably would have meant all races would be cancelled until covid is gone (i.e. 2022 season at the earliest). That would likely have put half the teams out of business and crippled the sport. Massively irresponsible.