The Power-ups that were recently added are interesting, but I'm baffled by the choice to make these a paid feature when default channel point rewards already exist, within the same UI, as an avenue that could have been taken to deliver these same features instead, especially since we haven't gained any new default channel point rewards in a while.
Implementing them as channel point rewards instead of their own feature would resolve every complaint people have about Power-Ups:

-Streamers can already choose whether to leave any default channel rewards are enabled or disabled. This alone would solve a lot of complaints.
-It doesn't clutter the channel points menu with a paid feature.
-It doesn't create potential to mislead or confuse a viewer or to cause a misclick more than usual.
-It doesn't come across as predatory, on behalf of the streamer or the platform.
-Streamers can choose where rewards appear in their channel's rewards menu, to a degree, by adjusting their price.
-It doesn't make it inconvenient for viewers to see how many channel points they have by displaying their bits next to it.