I must say, I think WW Financial Services missed a bit of a golden opportunity here. They could have brought the offering more in line with some of their competitors by including things like flight discounts, airport lounge access and other benefits that would appeal to their upper-LMS target market. This is over and above the "spend more" vouchers and cashback.
For me, that would actually have real value. If WW offered benefits like these, I could seriously consider cancelling my other credit card, which I mainly keep because it gives me access to these kinds of perks.