To suggest someone is 'like a seal' is less than apt, or helpful - particularly when that person is carrying out one of the country's key roles, in an exemplary manner.
Many aren't, and are much easier to confront. Patel (former assistant taking legal action); Hancock (poor covid decisions); Cummings (ignoring guidelines).
If - when acknowledging the critical work of NHS personnel - Ms Dick inadvertently and briefly breached distancing guidelines, most will be forgiving. In the belief that we're safe in our beds.