Chase has always had a collection of a dozen or so Ink card offers that seem overly confusing to everyone.
AMEX would never do such a thing as it creates too much confusion.
Don't see how said conjecture applies here.
And to add to the confusion on the landing page it says:
Earn over 45,000 bonus
points in your
first year when you spend $100,000.
and in the Offer details its says:
As one-time bonuses
Annually, once you exceed $25,000 in net purchases you will receive 7,500 bonus points, once you exceed $50,000 in net purchases you will receive an additional 15,000 bonus points, and once you exceed $100,000 in net purchases you will receive an additional 25,000 bonus points. ("Annually" means the year beginning with your enrollment date through the first statement after the anniversary of your enrollment date, and each twelve months thereafter.)
So... chase has some work to do.