... the presence of the FTQ is something of an enigma.
PSAC is a FTQ affiliate, and they have some bargaining units at McGill (MUNACA for one...) - maybe part-time faculty, TAs, not sure... And there are USW (Métallos) represented trades workers at Concordia and PSAC research assistants... Bit of a thin connection, but I don't know all the threads.
The biggest WTF question, however, is the absence of the FQPPU—the federation of university teachers...
Good question!