What do you define as the physical components necessary to call something a tarot deck?
For me, it's a deck of cards with a structure of four suits, court cards and a Major Arcana. The four suits are usually numbered 'pips', ace through ten, the court cards may have three or four people represented, and the Major Arcana are archetypal symbols. Everyone keeps referring to the Rider-Waite deck, but even the RW was still loosely based on the Visconti-Sforza Tarot deck, which in itself was probably a tarocchi game deck that was adopted for fortune telling.
Anything else, that does not have a basic 'playing card' deck structure, to me, is an 'oracle' or 'divination' card set, not a Tarot card set. I have a
Medicine Wheel oracle card set, and a
Thoth Tarot deck.
YMMV, and I will probably be argumentative about it when confronted
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