Very interesting experiment, included the use of quite a bit of engineering to simulate exposure to the virus. My question after reading it was: the recovered

Very interesting experiment, included the use of quite a bit of engineering to simulate exposure to the virus. My question after reading it was: the recovered viruses (even those that passed through) were able to infect Vero E6 cells, but would they be able to infect animals, should they get exposed to the recovered virus? Vero E6 cells don't have physical barriers (nose/mouth) or an innate immune system. EDIT: the reason for the question is: is the virus that "goes through" still enough to infect a person, or would it get stopped by the aforementioned obstacles?