The wordpress app did not support in-app-purchasements, so Apple blocked the wordpress app updates till there was an agreement.
Every method is right to fullfill the interests of the company, getting a share of everything.
https://www.engadget.com/wordpress-ios-in-app-payments-030422512.html
In the mean time they came to an agreement, somehow…
https://www.engadget.com/apple-allows-wordpress-without-in-app-purchases-152650859.html