Why is Xiaomi's coquettish SMS interception useless?

First, we open the SMS on our mobile phone, and then click Settings.

After setting is turned on, turn on SMS Intelligent Identification and turn off the promotion SMS notification switch below.

By setting these two switches, the mobile phone can automatically help us identify whether it is a malicious message or not, and can automatically intercept promotional messages.

After this setting, find harassment interception.

Turn on harassment interception, then select SMS interception, and then set notification SMS and MMS to intelligent interception state to intercept strangers' SMS directly!