So I happened to stumble across some actual data on alliance raid:
https://www.reddit.com/r/ffxiv/comme...ays_more_info/
Contrary to what some may believe, at least for this measured case, CT was not the only thing that popped up prepatch. More interesting though is some data on the pre/post comparison:
https://www.reddit.com/r/ffxiv/comme...l_update_wont/
Unsurprisingly, ilvl manipulation seems (I want to stress that there is uncertainty involved and we should remember that when forming conclusions) to have barely caused CT to popup, as the larger problem is CT being low level and required content.
From the data, there is a reduction in CT, but it's not noticeable. Anyone interesting in adding more data points now at least has some prepatch numbers to compare to.
My take away from this, the ilvl change remains bad for creating problems and for not solving the issue it was created to address. A better solution would be to separate CT from the other raids.