Hey Oz!
You have probably heard right, as I was told by MAM that "there will not be any training classes in the near future (for a little while)".
Also, I know of Casual FA's who have been made unavailable by crewing on the days they have requested to be available. Maybe there is an excess of crew and there is no need for additional training classes for this reason at the moment.
Just my own thoughts.
Rollz