Originally Posted by BlondeBomber

Confirmed by Ben Lipsey in an email this week and reported on another thread:

"I should also mention that many of the consumer tools used to check inventory (e.g. ExpertFlyer) are not actually able to search for true IKK availability, assuming you are simply searching for R class, as Aeroplan uses a different system that checks based on different criteria, so I might be careful about drawing conclusions based on that alone."

Availability has indeed shrunk dramatically recently.