They're changing the product positioning in the line so that the most popular model is now the "normal" one, and premium models are a step up from that. Honestly I like it better than giving the high end model the default branding with a worse model below it that most people will actually buy.

If you think that differentiating between three phones in the new range is confusing, you should keep far away from Xiaomi!

The argument has been made that the 11 is just as good as the flagship iPhones of the past but now they have another beyond-flagship model above that.