Ferry route returns as Unpaved Road in WayCategory

Using the V2 Directions Profile with the Way Category option a ferry route returns the Way Category as a 8 instead of a 4.

Here are the coordinates of the ferry route:

[[-122.385451, 47.813361],[-122.494537,47.794977]]

Select the option extra_info: waycategory. The return value is an 8 rather than a 4.

Just pinging to see if there is any activity for this issue.

I just saw this post from a while back that states the documentation is out of date.

A Way Category of 8 is now the ferry category.