Thanks a lot for checking this out & chiming in with the solution that was a light bulb
Just understood my confusion now...LOL
OK, so thanks to Bjorn I got it now, I was looking for this in the Sonic Academy packs available for sale and also in the Your Account/My Downloads/Samples area, thus I could never find it because this pack is actually in your "Subscriber Benefits" area on the site.
From the main page go to Your Account/Subscriptions/Subscriber Benefits/Sounds and this pack is the first one in the list "Subscriber Sample Packs - Sonic Academy Sample Pack"
Now the content of this area might vary according to your subscription I suppose, this looks like a pack available for the "Gold" ( yearly subscription plan ).
If your are logged-in this link should work too : https://www.sonicacademy.com/my_account/subscription
Just checked it and it's the good one, found the same Readme file inside, and that kick 14 used in the tutorial is from there in the Drums/Kicks sub-folder.