I've seen that page - it has 16 videos and it's unclear which are sped up, by how much, and which aren't. Some look sped up to my eye, and even if they aren't, I simply can't trust they aren't because they've shown they won't inform me so.

This is a super bad look for a new product offering whose entire killer feature and market differentiation is based on its supposed blazing speed.

Posting ANY video that's sped up, without clearly labelling by exactly how much, and when (eg, with a "3x speed" text overlay as is almost standard on internet video), is a huge mistake introducing a product differentiating on speed.

It's documentation. Sure, they could add the speed of the videos, but honestly, I want it optimized for showing me how to use the feature, not serving something it's not: marketing material.

Apple does this as well in it's documentation, and no one complains. Lots of companies do this. So, complaining about the documentation being optimized as documentation is silly in my eyes.