So with the Max Progression raised from 4x clears, to 5x clears, that means for events such as the upcoming Strange Sights PvE.
While this isn't that big a deal normally, with any 4* new character introduction though, it'll mean that if you "miss" the new character reward, then you'll miss the maximum progression in the next event. (I doubt you can get max progression w/o the Essential 4*).
Previously, if you cleared everything but the 4* essentials, earned the 4* reward, and then cleared everything else, you would get max progression (barely, I've done it).
So, to summarize, I think it sucks that the max. progression change happened at least in this situation (PvE after new event), because if you miss the 4* reward, you are **** on earning the 22CP reward at the end of the event.
P.S. I don't know if anyone else has made the same observation, because the boards have become so much different than the previous version.