Two more data points:
IC Frankfurt: got upgrade to Club Suite (size of around 2.5 normal rooms) incl. club access from cheapest. That is better than I had before.
IC Hong Kong: At Check In I still got my usual xx16 Junior suite plus club access from cheapest Harbor view. But they informed me that they changed their policy and provide only a two level upgrade in the future (which means you need to book Superior Harbor view,usually 200-300 HK$ more - or pay a 750 HK$ surcharge)
It really seems to depend on the hotel how they interpret the rules.