IF (and it is a always big "if" where the Sun is concerned) these were girls being paid to do a job and not doing it because they were moonlighting stripping on cam for cash, then they deserve the sack and it was a worthwhile journalistic exposure. It is almost certain that the care home is local authority funded, at least in part, so taxpayers are being defrauded. Also people who should be receiving care will be going without.
On the other hand if they were doing this in their lunch break on their own devices using their own internet service then they were not doing any "harm" as such (but still probably breaking their terms of employment by carrying out paid business on the premises).