During my last test at that dojo, I walked past the students who were doing that portion of the shodan test a few times.. From what I recall, when they count to 25, for example, they don't keep counting if you're not keeping up with it. You actually have to physically push yourself up for each repetition to count. It's not going be 500 proper form pushups, but it is 500 pushups nonetheless.
On another note, there's a book that caught my attention that I may be ordering soon. It's called Karate Stupid by Scott Langley. In it, he alleges that he went through years of physical abuse at the JKS instructor's course in Japan. Because of this book, he was excommunicated from JKS and joined WTKO. Later, he founded HDKI and is the head of it.