I meant from where the bus drops you off (TTC) for the MK. Obviously no vehicle goes to the MK. The bus will drop them off on the right side of the TTC and they can walk to the Poly. Did this a million times already. I stay on the monorail loop often and just as often, the monorails are not operating on time / repair for maintenance / stop working etc. Rather than waste time waiting to see if they will eventually work, we walk.
The OP stated MK, but I'm sure they meant TTC as the MK will not be open at that time.