There is a difference between "suggests injecting disinfectant as treatment" and "tells people to drink bleach". There are many possible treatments being suggested for covid, but that doesn't mean you should try them until they are confirmed to work.
Language only conveys information as accurately as it is interpreted. Ambiguity invites varying interpretations. While ~everyone here knows better, half of the people Trump leads are of a below-median ability to fill in the blanks.
Ambiguity is great when you are running an election and you are trying to appeal to the greatest number of people -- it is not good when you need to convey information in situations where human life is on the line. The reasons we have seemingly obvious warnings on household chemicals are written in blood.
https://www.bbc.com/news/world-us-canada-52407177