Reading between the lines, it looks like the hotels/owners are not happy about the new requirement. For instance, at the place I stayed, they really didn't seem too keen on the new breakfast option, even if they said it was coming in June. This may also explain (breakfast policy) why this is taking so long to implement i.e. a month+ since the announcement.
Be interesting how this plays out as IHG always appeared to me to be the chain with the least amount of power over their owners. Hopefully they put their foot down, tell them to get on with it or that they should look to terminate their contract(s).
That said, if the new top benefits get watered down, like as follows:
CSU - Say this is only applicable on fully flex rates and bookable 1-3 days out.
Breakfast- One per stay
Lounge - Not applicable at IC and Regent
Then I will have to re-evaluate Marriott and Hilton as I have taken a leap of faith with IHG since the announcement of the new benefits and have only switched all my stays to them based on the above being as described.