Being somewhat limited in scope is fine, if your deck is doing anything with counters this is basically an auto-include
I have certainly noticed an upturn in the valuation in general of the other cards on their list
The Cant Get Mad List contains controversial cards which some folks think should be banned already, such as Survival of the Fittest, Senseis Divining Top, Consecrated Sphinx, Seedborn Muse, and probably the most-hated still-legal card, Deadeye Navigator
Not only does Kutzil prevent your opponents from casting spells during your turn, but he can also allow you to draw cards if your deck uses anthems, +1/+1 counters, Auras, or Equipment
Krumar Initiate Paul of Blood is slower to grow than a wall, but sticks around longer
Supply issues that plagued Disney Lorcana: The First Chapter spiked demand for cards that were uncommon or especially effective, and at least some of this momentum inherently carries over to Rise of the Floodborn