The pacing will be a lot better for PC players that are coming into the game.
Xbox was essentially an extended beta to hammer out some kinks and financially support the game before the PC launch.
If you consider it this way: from March until the end of June, Xbox players have/will only have SHAQs for farming the current best equipment.
For the pacing of getting to the end of Episode 6 by the end of 2020, Episode 4 would have to release by July, with subsequent episodes every 2 months.
Each new episode should present significant diversity in weapons, units,classes, and areas to play the game.
In comparison to the length of time Xbox players have gotten substantial changes, PC players are much better off with the timing of their release.