It is. The 6.25b Banish is capped at 100m coins and 40m credits the same as 1.25b. You seemingly get less because each round does less damage compared to the lower tier as it has much more HP.
I think the point of the topic is, for them the cap lowered even more for some reason.
To OP, do you remember the % exec got? It's be easier to do the math rather than adding up the top few players and then guessing what all the others got.