I am rarely thankful for a card being gold as it restricts its use but when a card is so obviously all round fantastic like Vindicate it is a blessing so you don't encounter it in every single deck
Marketing gimmicks are fine, but Wizards should know better than to act like sticking unique Secret Lair cards on "The List" is going to solve potential supply issues or do much to minimize the risk of printing unique cards in time-limited, potentially low-supply products

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I like it more after a second reading
Yes, much of that excitement comes from Pioneer, where Kaheera is a card that Cat Tribal is BEGGING for and probably makes the kitties a very good tribe in that format