Uh?  DAZ had complete control over how they designed and implemented ExP, no one at EF gave them a requirement "You must produce a featureless updater utility that has no options, cannot be interactively and selectively run, and you must not give the user an interface to maintain or undo any unwanted changes your updater makes."  Poser dictated nothing whatsoever how DAZ designed and rolled out ExP.  I'm a fan of their products, sure, but I don't put them up on a level where they can do no wrong - and the rollout of ExP was frankly pretty poor.

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