As far as I can see:
The "
Gear listed above" refers to the "5 new classic amplifier models that represent some of the best British tones from the 70s, 80s and 90s plus an “Acoustic Sim” model pedal, a double mic setup and UltraTuner,"
And "
plus all the other gear you see below" refers to the gear models displayed when the "AmpliTube MAX Bundle" is selected in the drop-down list. You should have all of those. I can see that there could be some confusion as it is possible to select other products from that list. Some (I think) are bundled into AT4 MAX but others (e.g. Dimebag) aren't.
I would contact IK Multimedia
Sales Support and explain that the text on that web page led you to understand that all of the gear on the drop-down lists (including Dimebag) was part of the MAX bundle. They may be able to do something for you.
But, no promises. I am not employed by IK Multimedia.