The pressed cranks always had the potential to shift in use, especially hard use, but the big difference IMHO was when Harley made the change to the 2007 (2006 Dyna) crank and primary designs. With the '99-'06 cranks, they typically came from Harley with .001 or less runout. With the new design and tooling changes for 2007, that "straight from the factory" runout figure more than quadrupled. So the crank was a piece of crap from the moment it was pressed together, before anyone even had a chance to use it hard. And in typical Harley fashion, they haven't fixed the problem in the following seven years.
I think they need to just start selling rolling chassis and let customers install a good powertrain from other sources.
Jerry