Many years ago, Advantage Plus Asia had its own booking site. When searching a city, they'd give a list of every hotel's availability and lowest prices in a 2 week, day by day calendar. This would also work for free night searches.
One day, they shut it down and all riches had to route through the Accor hotels corporate site.
It seems like they like to cloud availability and prices. The tools that help us seem to be pulled BECAUSE they're useful.