For me, the next paragraph is more interesting, containing, as it does, this statement about the EOS R5:
"Including high-speed, high-resolution, 8K video..."
That seems to knock on the head those speculations that the 8K video will be some "crippled" effort, such as a timelapse mode. I don't understand the "high-resolution" description in connection to 8K video though, as if you could have low-resolution, mid-resolution and high-resolution versions of it.
By high resolution it could mean they're outputting 1:1 without resampling or other algorithms in play to reduce image quality, or it could simply mean it's high resolution, as in, better than 4K. Anyone's guess at this point.