Gathering from the wordvomited data with a lack of what your gathered conclusion was from it other than "what?" That you are disbelieving that coyotes could become GSD sized yet it was you who initally brought up the point that eastern eastern coyotes run larger.Your data states before all of the the measurements that that coyotes typically stay within a range. Again like dog breeds its an average trait. So there will always be exceptions. I believe @shibamistress did infact see a GSD coyote and as she states there is a surprising lack of indepth data on on coyotes, especially in recent times. So if you made those posts to express how aghast you were at the size of her local coyote pack so be it, they are probably one of the top predators in her area but I wouldn't discredit the possibility of large coyotes unless you have done the accurate population studies on the different regional specimens.
I agree with @cdenney... On the east coast there are many scientifically documented cases of larger coyotes that are similar in size to a GSD, weighing between 65 and 90 pounds. As for @tarokun - You keep asking a lot of personal questions to forum members where we no absolutely nothing about you. Why not post a proper introduction allowing us to get to know you?
I think a LOT of supposed coyote sightings are just stray dogs. Some may be coydogs but.... Think about it. How many people think our Nihon Ken are wolves, foxes, coyotes, hyenas, etc? People are dumb and can't tell a wolf or a coyote from a GSD or a husky. (Most people. Not saying anyone on this forum had a false sighting.)
I'm not feeling the coyote love (though the pups sounds cute)