So this looks like a new development (no phone number required). Along with the post here https://www.flyertalk.com/forum/35421524-post7093.html. Looks like the "announcement" about Alipay x Mastercard was just removing that requirement.

I don't actually see the use in TourPass anymore. You have to verify your passport anyway for it and they charge a higher fee (credit card fee I think is 3% max). I'll update the wiki, thanks!