For the algorithm to work it needs to have data, and to get that data it needs to show you a variety of things.

I can imagine that some people don’t want to see extreme content, even briefly in order to train the algorithm. Hence the drive toward making all content neutral.

If I create a new Instagram account, and the first 5 things I see are various extreme things (of different "ideological stripes"), I'm closing the app, not waiting for the algorithm to adjust itself to me.