Granted, Iranians can be very hospitable people. I know that too, from experience. From visiting the country and from meeting expatriates.
But what has that to do with unnecessary and risky transmission of the Covid-19 virus? The spread of the contagion is alarmingly high, principally from Qom. The stupid "religious" authorities have seen fit to encourage mass pilgrimages in the face of hard facts concerning the spread of this virus in their country.
Uncontained travel from Iran to the UK is utterly wrong at this moment. Nothing to do with how nice the people are.