There are probably people who would be able to milk this for a lot of money and have other ways of maxing out their IP's.
Yes, there are some people on the planet who, despite having multiple inks per spouse, and multiple blue cash's per spouse, will still spend over a million bucks a year on 5x categories.
For those people, of whom there are very few, this card may be useful.
To everyone else, big meh. Or perhaps even worse, this amazon card with ear you *less* than some other options.