I happen to run into a possible workaround through sheer luck. It turns out you can pipe the output of Get-NaHelp to Get-Help, which will give you help information for every cmdlet included in the toolkit. You can then pipe this into Out-File to create a text file of all the help information (and with the -full switch, you get all the examples too!):
PS> Get-NaHelp | Get-Help -full | Out-File "DataONTAP Powershell Toolkit Online Help.txt"
This will create a ~3.5MB text file of all the help information.
Hope that helps!
-Steven