Threat Levels same as last month

Mandagar

There is something wrong with these threat levels. As you can see in the attached screenshots, it goes from 3* to 4* then 6* when you think the next logical difficulty would be 5*s. Then we see 7*s followed by more 7*s for threat level 5. I used play threat level 3 and remember fighting 5* champions. I want to see a game mode that has a threat level with a gradual climb and not one that looks so steep.