MINING AND CARD COLLECTION

Correct me if I’m wrong, but with the old system, we received 100 T-cash as the final price for ROTM and the first card collection was also 100 T-cash plus the boosters. Now it’s 2500 for ROTM and 10,000 for the card collection. Why is it that with the new economy change the T-cash reward is drastically different? This isn’t a complaint I’m just genuinely confused. Seems a little bit unfair