I agree, though under the current circumstances I would have no problem with having individuals who do not honour quarantine rules "jailed" in quarantine hotels

I agree, though under the current circumstances I would have no problem with having individuals who do not honour quarantine rules "jailed" in quarantine hotels (we have one in Iceland). Not specifically talking about these supposed two French tourists. Iceland obviously has had domestic cases of individuals who believe the virus to be a hoax, and thus decided not to quarantine after being tested positive. These individuals were, according to memory, held against their will during the remainder of their quarantine and fined.