We can go on arguing about slot allocation, usage and how god/bad the system is. Luckly after long discussions we will all understand a bit better how things work and why. But PMI is different.
PMI applies ZERO TOLERANCE no matter how many aicrafts they have at the holding point. They make no projections whatsoever and the word flexibility is deleted from their SOP. Many examples of this lack of flexibility have been offered in posts above.As a regular in PMI I know this is not a Once in a While situation.
WRT to preference to Spanish operators....ZERO TOLERANCE all over the place
Happy Landings