Try to stretch your intellect to the idea that I want to just enter a race for fun and do not care about the results except as they relate to my personal satisfaction.
People have been entering bikes (classed by engine size, generally) which are not strictly class legal as wildcard/non-series entries for years, I had an organizer, who shall remain nameless, practically beg me this fall to bring my "illegal" bike out just to fill out the class. He also told me that there was no other class for my 1000, which may not have been the case... :/
Anyway... what do you care?