My Marrying Kind isn't going to bloom this year, but sure has a bunch of increases. Maybe one of those will bloom as a couple are really big. It's one where the main rhizome just isn't developing into a big fan, giving everything to the babies.
Politicians are like diapers, they need to be changed often, and for the same reason.
This type of behavior is common for me as well. It does seem to delay seeing the iris, but usually you have several increases and more potential bloom the next year.
Glad you posted their picture of it since it is hard to find pictures of it anywhere. 
