It seems players didn’t quite catch the latest Season Journey update, as some were getting upset that the Ashes are all the way at the end! This isn’t the case, however, but you wouldn’t know that from looking at the journey in the game.
A Hotfix Without a Visual
The game UI is still showing the old, pre-hotfix status of Season Journey rewards.

However, Blizzard already changed the reward structure before the season released. They moved up the Smoldering Ashes and pet:
Chapter II: 2 Ashes via Chapter completion
Chapter III: 2 Ashes via Chapter completion
Chapter IV: 3 Ashes via Chapter completion + 1 Ash via Chapter objective
Chapter V: 3 Ashes via Chapter completion + 1 Ash via Chapter objective
Chapter VI: 3 Ashes via Chapter completion + 1 Ash via Chapter objective
Chapter VII: 3 Ashes via Chapter completion + 1 Ash via Chapter objective
Iris, the new pet reward for Season 8, will now be available after completing Chapter VI as opposed to Chapter VII.
The in-game UI will also be updated, but needs a client patch to enable. So don’t worry, your Ashes will arrive well ahead of what the game says, and the pet a little bit ahead.