Kishin Shoukan

What mechanism in the game was nerfed to make Hyper Tele Rocks sell?
None. Free travel has only been getting easier and easier.

We've had pay2win as far back as 2x exp coupons, and Gachapon giving powerful equipment and scrolls that couldn't be obtained any other way. That's not the issue here.
What we have here is the first time they take away a free feature to make room for a pay2win alternative. (Although some people are saying that manual loot suspiciously acquired a delay at the same time that pet loot was introduced. Maybe. I wasn't playing back then so I don't know how that went down.)

hyper teles were available permanently via cash shop, the option was taken away in order to put them in the much more profitable wheel. you're right, it's not the same, but every new year they one up themselves.