Good to see you taking it with the grain of salt as some of the posters intended. All good matured but a lot of bantering goes on here.
To further address your question: There has to be some reason applied to anything as complex as a warranty. And no warranty can be entirely voided by something like a slightly extended maintenance interval, so no, you did not void your warranty. Further, other than internal engine or transmission damage, no mfg. would even try to avoid a warranty claim on, say, front brakes because you missed an oil change. As these bikes are really and truly robust, it is unlikely you will ever have engine or transmission damage but even if you did, Kawasaki would still have to press and make a reasonable point that YOUR slight miss on a service interval contributed or better yet, caused the [whatever in the engine or transmission] to fail. Possible certainly but highly unlikely IMO.
Best of luck with the new ride and enjoy the hell out of it.
Brian
Thank you folks!
I appreciate the feedback.