Thought the same. On a side note, the Sketch website is a hot mess. Love the Sketch product, but this... this is something.
It doesn't get any better as you scroll either. Everything is animated and changes while you're trying to read it.
I tried to give them feedback through there "Contact Us" form and it's broken.
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Sketch. If you read this thread, please take this feedback seriously. It's shocking how unusable your marketing website is.