The Thomas Fisher Rare Book Library doesn’t seem open to the public all the time, but it does have events it seems.
https://fisher.library.utoronto.ca/fisher-events
Also it has participated in Doors Open Ontario which is an annual event for a few days in May, when many publicly funded or non-profit buildings that usually have restricted admittance, are open for viewing.
https://www.doorsopenontario.on.ca/toronto/thomas-fisher-rare-book-library




But TrekMovie has one with the Breen that’s not on the StarTrek.com official site.
Seems like a quality control issue in sending out the embargoed emails.