I think it's cool. It's how everything should be. There HAVE been examples of "golden samples" in other areas in the past - Asus and MSI both got caught shipping graphics cards to reviewers in OC mode by default, for example. If they're just sending a chunk of PSUs to Newegg and then having Newegg ship them to reviewers, then that's going to be hard to make an "agreement" on.
It's also probably cheaper, since Newegg ships to end users (not End User) in volume.
Lastly, it's not that they're "pulling the plug" - that makes it sound like they're not shipping review units at all. Thread headline is misleading.
I do not understand what I do. For what I want to do I do not do, but what I hate I do.