This is an opinion. Please do not mistake it as fact, without doing your own research
There are two distinctly different opinions on whether it is best to immunize as many people as possible, or keep to the current 2nd dose schedule.
A single dose has proven to effectively prevent the transmission of Covid. It is my belief she is attempting to vaccinate, with a single dose, as many people as possible, in as short a time as possible. She is attempting to prevent the spread of Covid, thus creating a Herd Immunity Scenario. The second dose can actually be given at the 16 week interval, without having to repeat the first dose. It is a bold move, but in my opinion, it is the right move for the general population as a whole.
No matter where you stand, the second dose is recommended, and required, no matter the time frame.
Bob