Straight from the page you linked they state:
Schmierstoffvertrieb GmbH does not liable for transmission failures in case of
wrong selection of RAVENOL special transmission fluid.
If they can't even get the verbiage right in their disclaimer statement, why would you trust the product?
Now, beyond that, you state that the OEM fluid is nearly the same price.
Why would you mess with this unlicensed stuff???
It just makes no sense.