Glad to see this. I waited for a long time to upgrrade my computer and made the mistake of dropping $$$ on a 2016 MBP. I've had a random rrepeating 'R' key since I got it. Unfortunately, since I purchased via the Apple website, the Genius Bar couldn't just swap out my MBP for a new one. So, I've been to the Genius Bar on three separate occasions to try to get the issue resolved. There was no dust/dirt/food under the keyboarrd. They cleaned it, they ordered a replacement key for the "R" key. They tried some other fixes (I'm still unclear on exactly what) .. and it's still doing it.
My next option (apparrently) is to leave it with them to ship it out and completely replace the keyboard. Guess it's a good thing I bought the Apple Care plan? But should it really come to that for so much money?
Oh, and I like the way no matter who I speak to at Apple, they always insist they've 'never heard of this happening before'. Sure.