The MHRA took the decision saying "Pharmacists are experts in medicine, and have the necessary skills and training to ensure the safe and efficient supply of pharmacy medicines ... [they] will be able to advise if [the medicine] is suitable to protect from malaria depending on which countries are being visited, pre-existing medical conditions, and any other medicines being taken."
This is a companion discussion topic for the original article at https://patient.info/news-and-features/getting-malaria-tablets-from-your-pharmacist